Chromatography &amp; Spectroscopy Reagents

Methoxyamine hydrochloride is a commonly used reagent for the generation of oxime derivatives of aldehyde- or ketone-group containing compounds. It is typically employed as an oximation reagent prior to silylation derivatizations.

storage conditions	Store at +15°C to +25°C.
Quality Level	100
Agency/Method	reag. Ph. Eur.
vapor pressure	<0.01 hPa ( 20 °C)
assay	99.5% (perchloric acid titration)
form	solid
autoignition temp.	390 °C
potency	9200 mg/kg LD₅₀, oral (Rat)
pH	7-10 (20 °C, 100 g/L in H₂O)
transition temp	flash point 250 °C
density	1.33 g/cm³ at 20 °C
bulk density	600 kg/m³
storage temp.	15-25°C
InChI	1S/C6H12N4/c1-7-2-9-4-8(1)5-10(3-7)6-9/h1-6H2
InChI key	VKYKSIONXSXAKP-UHFFFAOYSA-N

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Methoxyamine hydrochloride

Empirical Formula (Hill Notation):	CH₅NO · HCl
Linear Formula:	CH₃ONH₂ · HCl
CAS Number:	593-56-6
Molecular Weight:	83.52
Beilstein/REAXYS Number:	3589723
MDL number:	MFCD00012951
NACRES:	NA.05

Methoxyamine hydrochloride can be used as:

A reagent for the preparation of O-methyl oximes.
A reagent used to make O-methyl oximes from aldehydes or ketones.
An alkylation reagent.
It may be used as a derivatization agent to improve the sensitivity of opioids, steroids and ionic metabolites in biological samples and non-volatile flavor compounds in "Angeleno" plum fruit prior to the determination of analytes using gas chromatography-mass spectrometry (GC-MS) technique.

Discover LiChropur™ reagents ideal for HPLC or LC-MS analysis

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Quality Level	100
grade	for GC derivatization
assay	97.5-102.5% (AT)
quality	LiChropur^™
reaction suitability	reagent type: derivatization reagent reaction type: Acylations
application(s)	gas chromatography (GC): suitable
mp	151-154 °C (lit.)
SMILES string	Cl.CON
InChI	1S/CH5NO.ClH/c1-3-2;/h2H2,1H3;1H
InChI key	XNXVOSBNFZWHBV-UHFFFAOYSA-N

Identity (IR-spectrum): conforms
Appearance: White to almost white crystals or crystalline powder.
Melting point: 68 - 72 °C

pictograms	GHS05,GHS07,GHS08,GHS09
signalword	Danger
hcodes	H290 - H302 + H312 - H315 - H317 - H319 - H351 - H372 - H410
pcodes	P201 - P273 - P280 - P301 + P312 + P330 - P302 + P352 + P312 - P308 + P313
RIDADR	UN3261 - class 8 - PG 2 - EHS - Corrosive solid, acidic, organic, n.o.s., HI: all
WGK Germany	WGK 3
Flash Point F	Not applicable
Flash Point C	Not applicable

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Methoxyphenylacetic acid

Empirical Formula (Hill Notation):	C₉H₁₀O₃
CAS Number:	7021-09-2
Molecular Weight:	166.17
MDL number:	MFCD00064217
EC Index Number:	230-300-9

Shown to be the most effective monomethylating agent in reactions with potassium enolates.
Useful methylation reagent for the conversion of amines to methyl ammonium triflates.
Methyl trifluoromethanesulfonate (Methyl triflate) is a strong methylating agent. It is also a powerful alkylating agent and a strong irritant.

storage conditions	Store at +15°C to +25°C.
Agency/Method	reag. Ph. Eur.
Quality Level	200
mp	70 °C (External MSDS)
storage temp.	15-25°C
InChI	1S/C9H10O3/c1-12-8(9(10)11)7-5-3-2-4-6-7/h2-6,8H,1H3,(H,10,11)
InChI key	DIWVBIXQCNRCFE-UHFFFAOYSA-N

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Methyl trifluoromethanesulfonate

Empirical Formula (Hill Notation):	C₂H₃F₃O₃S
Linear Formula:	CF₃SO₂OCH₃
CAS Number:	333-27-7
Molecular Weight:	164.10
Beilstein/REAXYS Number:	774772
EC Number:	206-371-7
MDL number:	MFCD00000409
PubChem Substance ID:	329751681

Methyl trifluoromethanesulfonate was used in the synthesis of 2-Benzyloxy-1-methylpyridinium trifluoromethanesulfonate.

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Quality Level	100
grade	for GC derivatization
assay	98.0% (GC), 98.0%
quality	LiChropur^™
reaction suitability	reagent type: derivatization reagent reaction type: Acylations
application(s)	gas chromatography (GC): suitable
refractive index	n20/D 1.326 (lit.), n20/D 1.327
bp	94-99 °C (lit.)
density	1.45 g/mL at 25 °C (lit.)
storage temp.	2-8°C
SMILES string	COS(=O)(=O)C(F)(F)F
InChI	1S/C2H3F3O3S/c1-8-9(6,7)2(3,4)5/h1H3
InChI key	OIRDBPQYVWXNSJ-UHFFFAOYSA-N

solution contains hexaammonium heptamolybdate ((NH4)6Mo7O24.4H2O); sulfuric acid (H2SO4); potassium antimony(III) oxide tartrate(K(SbO)C4H4O6.0.5H2O);water

pictograms	GHS02,GHS05,GHS06
signalword	Danger
hcodes	H226 - H301 + H311 - H314 - H330
pcodes	P210 - P233 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
RIDADR	UN 2920 3(8) / PGII
WGK Germany	WGK 3
Flash Point F	100.4 °F - closed cup
Flash Point C	38 °C - closed cup

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Molybdate reagent solution

Quality Level	200
quality	for photometric phosphate determination acc. to DIN 38405-D11-1
application(s)	UV/Vis spectroscopy: suitable

Monensin, is an antibiotic produced by Streptomyces cinnamonensis. It is a naturally occurring ionophore. It has an acyclic polyether sequence and a terminal carboxylic acid moiety. It has the ability to effectively carry protons and cations through the cell membrane, hence it adequately harbours Na+ into a characteristic pseudoactivity, thereby effectively transporting it across a bio-membrane. It also forms stable complexes with k+, Rb+ and Ag+; hence it can be chemically modified to form cation-binding sites, thereby attaining transport functionalities.
Visit our Sensor Applications portal to learn more.

pictograms	GHS05
signalword	Danger
hcodes	H290 - H314
pcodes	P234 - P280 - P301 + P330 + P331 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
Personal Protective Equipment	Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
RIDADR	UN 2796 8 / PGII
WGK Germany	WGK 1
Flash Point F	Not applicable
Flash Point C	Not applicable

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Monensin methyl ester

Empirical Formula (Hill Notation):	C₃₇H₆₄O₁₁
CAS Number:	28636-21-7
Molecular Weight:	684.90
Beilstein/REAXYS Number:	3641733
NACRES:	NB.61

Bottomless glass bottle. Contents are inside inserted fused cone.

Selectophore is a trademark of Sigma-Aldrich Chemie GmbH

Quality Level	200
grade	for ion-selective electrodes
product line	Selectophore^™
assay	97.0% (TLC)
storage temp.	2-8°C
SMILES string	CC[C@]1(CCC(O1)[C@]2(C)CC[C@]3(C[C@H](O)[C@@H](C)C(O3)[C@@H](C)[C@@H](OC)[C@H](C)C(=O)OC)O2)C4OC(C[C@@H]4C)C5O[C@@](O)(CO)[C@H](C)C[C@@H]5C
InChI	1S/C37H64O11/c1-11-35(32-21(3)17-27(44-32)29-20(2)16-22(4)37(41,19-38)47-29)13-12-28(45-35)34(8)14-15-36(48-34)18-26(39)23(5)31(46-36)24(6)30(42-9)25(7)33(40)43-10/h20-32,38-39,41H,11-19H2,1-10H3/t20-,21+,22+,23+,24+,25+,26-,27-,28+,29-,30-,31-,32-,34+,35-,36+,37-/m0/s1
InChI key	PFRZSHIENRKVSE-RJTHVKINSA-N

Ion-pairing reagents as mobile phase additives facilitate the separation of ionic and highly polar substances on reversed phase HPLC columns. Their purity is an important parameter for their successful application. Sigma-Aldrich offers an wide range of tailor-made reagents for anionic (quaternary ammonium and phosphonium salts) and cationic (alkanesulfonates) analyzes. All mobile phase additives are subject to rigorous testing with special emphasis on the requirements of modern reversed phase HPLC:

pictograms	GHS06
signalword	Danger
hcodes	H301
pcodes	P301 + P330 + P331 + P310
Personal Protective Equipment	Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges
RIDADR	UN 2811 6.1 / PGIII
WGK Germany	WGK 3
Flash Point F	Not applicable
Flash Point C	Not applicable

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Myristyltrimethylammonium bromide

Empirical Formula (Hill Notation):	C₁₇H₃₈BrN
Linear Formula:	CH₃(CH₂)₁₃N(Br)(CH₃)₃
CAS Number:	1119-97-7
Molecular Weight:	336.39
Beilstein/REAXYS Number:	3633227
EC Number:	214-291-9
MDL number:	MFCD00011770
PubChem Substance ID:	329769512
NACRES:	NB.21

Discover LiChropur™ reagents ideal for HPLC or LC-MS analysis

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Quality Level	100
description	cationic
assay	99.0% (AT)
quality	LiChropur^™
mol wt	micellar avg mol wt 27,000
aggregation number	80
application(s)	ion pair chromatography: suitable
CMC	4-5 mM (20-25°C)
mp	245-250 °C (lit.)
	10 % in H₂O
UV absorption	: 240 nm A_max: 0.08, : 250 nm A_max: 0.05, : 260 nm A_max: 0.04, : 500 nm A_max: 0.02
suitability	corresponds to standard for filter test
SMILES string	[Br-].CCCCCCCCCCCCCC[N+](C)(C)C
InChI	1S/C17H38N.BrH/c1-5-6-7-8-9-10-11-12-13-14-15-16-17-18(2,3)4;/h5-17H2,1-4H3;1H/q+1;/p-1
InChI key	CXRFDZFCGOPDTD-UHFFFAOYSA-M

N,N-Bis(trimethylsilyl)methylamine is a silylating agent used to prepare TMS derivatives. It has about the same silylation potential as hexamethyldisilazane (HMDS) and can be used in the same manner. Its reaction by-product is the gaseous methylamine.

pictograms	GHS05,GHS07,GHS08,GHS09
signalword	Danger
hcodes	H302 - H315 - H318 - H335 - H373 - H400
pcodes	P260 - P280 - P301 + P312 + P330 - P305 + P351 + P338 + P310
Target Organs	Gastrointestinal tract, Respiratory system
Personal Protective Equipment	Eyeshields, Faceshields, Gloves, type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges
RIDADR	UN 3077 9 / PGIII
WGK Germany	WGK 3
Flash Point F	Not applicable
Flash Point C	Not applicable

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N,N-Bis(trimethylsilyl)methylamine

Empirical Formula (Hill Notation):	C₇H₂₁NSi₂
CAS Number:	920-68-3
Molecular Weight:	175.42
Beilstein/REAXYS Number:	1737290
EC Number:	213-061-5
MDL number:	MFCD00008262
PubChem Substance ID:	329750789
NACRES:	NA.22

50 mL in glass bottle

Reagent for methylamination of acid halides, e.g. a phosphorus fluoride

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Quality Level	100
grade	for GC derivatization
assay	97.0% (GC)
quality	LiChropur^™
reaction suitability	reagent type: derivatization reagent reaction type: Silylations
application(s)	gas chromatography (GC): suitable
refractive index	n20/D 1.421 (lit.)
bp	144-147 °C (lit.)
density	0.799 g/mL at 20 °C (lit.)
SMILES string	CN([Si](C)(C)C)[Si](C)(C)C
InChI	1S/C7H21NSi2/c1-8(9(2,3)4)10(5,6)7/h1-7H3
InChI key	ZSMNRKGGHXLZEC-UHFFFAOYSA-N

Assay: 99.5 %
Identity (IR-spectrum): passes test
pH-value (5%; water): 2.0 - 2.2
Heavy metals (as Pb): 0.001 %
Fe (Iron): 0.001 %
Sulfated ash (600°C): 0.05 %
Water (according to Karl Fischer): 0.5 %

pictograms	GHS02,GHS07
signalword	Warning
hcodes	H226 - H315 - H319 - H335
pcodes	P210 - P302 + P352 - P305 + P351 + P338
Target Organs	Respiratory system
RIDADR	UN 1993C 3 / PGIII
WGK Germany	WGK 3
Flash Point F	82.4 °F - closed cup
Flash Point C	28 °C - closed cup

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N,N-Diethyl-1,4-phenylenediammonium sulfate

Empirical Formula (Hill Notation):	C₁₀H₁₈N₂O₄S
CAS Number:	6283-63-2
Molecular Weight:	262.33
MDL number:	MFCD00012993
EC Index Number:	228-500-6

Assay (acidimetric): 99.5 %
Identity (IR-spectrum): passes test
Sulphate (SO): 0.05 %
Sulfated ash: 0.05 %

storage conditions	Store at +15°C to +25°C.
Quality Level	100
autoignition temp.	540 °C
potency	497 mg/kg LD₅₀, oral (Rat)
pH	2.0-2.2 (20 °C, 50 g/L in H₂O)
bp	274-275 °C/1013 hPa
mp	184-186 °C
solubility	500 g/L
bulk density	580 kg/m³
storage temp.	15-25°C
InChI	1S/C10H16N2.H2O4S/c1-3-12(4-2)10-7-5-9(11)6-8-10;1-5(2,3)4/h5-8H,3-4,11H2,1-2H3;(H2,1,2,3,4)
InChI key	AYLDJQABCMPYEN-UHFFFAOYSA-N

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N,N-Dimethyl-1,4-phenylenediammonium dichloride

Empirical Formula (Hill Notation):	C₈H₁₂N₂ · 2HCl
CAS Number:	536-46-9
Molecular Weight:	209.12
MDL number:	MFCD00012991
EC Index Number:	208-635-7

N,N-Dimethylformamide di-tert-butyl acetal is an derivatizing reagent.

storage conditions	Store below +30°C.
Quality Level	100
assay	99.5% (acidimetric)
pH	1.6 (20 °C, 50 g/L in H₂O)
mp	208-212 °C (decomposition)
solubility	2000 g/L
bulk density	500 kg/m³
storage temp.	2-30°C
InChI	1S/C8H12N2.2ClH/c1-9-7-3-5-8(10-2)6-4-7;;/h3-6,9-10H,1-2H3;2*1H
InChI key	PXJHVKRLFWZUNV-UHFFFAOYSA-N

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N,N-Dimethylformamide di-tert-butyl acetal

Empirical Formula (Hill Notation):	C₁₁H₂₅NO₂
Linear Formula:	(CH₃)₂NCH[OC(CH₃)₃]₂
CAS Number:	36805-97-7
Molecular Weight:	203.32
Beilstein/REAXYS Number:	969629
EC Number:	253-222-7
MDL number:	MFCD00015002
PubChem Substance ID:	24864634
NACRES:	NA.22

10×1, 5, 25 mL in ampule
Clear borosilicate glass, high hydrolytic resistance (Type I)

Reagent used for the preparation of indolizines via intermolecular cyclization of picolinium salts.
It was used as derivatizing agent in a study to determine cocaine and benzoyl ecgonine in urine using GC with on-column alkylation.

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Quality Level	100
grade	for GC derivatization
assay	90.0%
quality	LiChropur^™
reaction suitability	reagent type: derivatization reagent reaction type: Acylations
application(s)	gas chromatography (GC): suitable
refractive index	n20/D 1.413 (lit.)
bp	56-57 °C/8 mmHg (lit.)
density	0.848 g/mL at 25 °C (lit.)
SMILES string	CN(C)C(OC(C)(C)C)OC(C)(C)C
InChI	1S/C11H25NO2/c1-10(2,3)13-9(12(7)8)14-11(4,5)6/h9H,1-8H3
InChI key	DBNQIOANXZVWIP-UHFFFAOYSA-N

Esterate M (N,N-Dimethylformamide dimethyl acetal, DMFDMA) is an methylating reagent. It has been used in methyl esterification of carboxylic acid and also in one-step derivatization of amino acids into N,N-Dimethylaminomethylene methyl esters.

pictograms	GHS02,GHS07
signalword	Warning
hcodes	H226 - H315 - H319 - H335
pcodes	P210 - P302 + P352 - P305 + P351 + P338
Target Organs	Respiratory system
Personal Protective Equipment	Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
RIDADR	UN 1993C 3 / PGIII
WGK Germany	WGK 3
Flash Point F	95.0 °F - closed cup
Flash Point C	35 °C - closed cup

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N,N-Dimethylformamide dimethyl acetal

Empirical Formula (Hill Notation):	C₅H₁₃NO₂
Linear Formula:	(CH₃)₂NCH(OCH₃)₂
CAS Number:	4637-24-5
Molecular Weight:	119.16
Beilstein/REAXYS Number:	506020
EC Number:	225-063-3
MDL number:	MFCD00008482
PubChem Substance ID:	24864631

5, 25 mL in glass bottle
10×1 mL in ampule

Used to catalyze the coupling of epoxides with carbon dioxide under solvent free conditions leading to cyclic carbonates.
Suitable for the derivatization of primary sulfonamides and trifluoroacetic acid.
Used in the preparation of formamidine derivatives, which are synthetic intermediates.
It may be used in methylation of heterocyclic compounds which contains SH, NH, OH groups such as benzimidazole, naphth[2,3-c]imidazole, imidazo[4,5-c]-pyridine, purine, pyridine, pyrimidine, pyridazine and s-triazolo[4,3-b]pyridazine. It was used as derivatizing agent in a study to determine cocaine and benzoyl ecgonine in urine using GC with on-column alkylation.

Reagent for n-dimethylaminomethylene and methyl esters.

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Quality Level	100
grade	for GC derivatization
assay	>95%
quality	LiChropur^™
reaction suitability	reagent type: derivatization reagent reaction type: Acylations, reagent type: derivatization reagent reaction type: Esterifications
application(s)	gas chromatography (GC): suitable
refractive index	n20/D 1.396 (lit.)
bp	102-103 °C/720 mmHg (lit.)
density	0.897 g/mL at 25 °C (lit.)
SMILES string	COC(OC)N(C)C
InChI	1S/C5H13NO2/c1-6(2)5(7-3)8-4/h5H,1-4H3
InChI key	ZSXGLVDWWRXATF-UHFFFAOYSA-N

N,N-Dimethylformamide dipropyl acetal is an derivatizing reagent.

pictograms	GHS02,GHS05,GHS07
signalword	Danger
hcodes	H225 - H317 - H318 - H332
pcodes	P210 - P280 - P302 + P352 - P304 + P340 + P312 - P305 + P351 + P338 + P310
Personal Protective Equipment	Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
RIDADR	UN 3271 3 / PGII
WGK Germany	WGK 1
Flash Point F	42.8 °F
Flash Point C	6 °C

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N,N-Dimethylformamide dipropyl acetal

Empirical Formula (Hill Notation):	C₉H₂₁NO₂
Linear Formula:	(CH₃)₂NCH(OCH₂CH₂CH₃)₂
CAS Number:	6006-65-1
Molecular Weight:	175.27
Beilstein/REAXYS Number:	1098524
EC Number:	227-855-4
MDL number:	MFCD00009374
PubChem Substance ID:	24864633

It was used as derivatizing agent in a study to determine cocaine and benzoyl ecgonine in urine using GC with on-column alkylation.

10×1, 25 mL in ampule

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Quality Level	100
grade	for GC derivatization
assay	97.5%
quality	LiChropur^™
reaction suitability	reagent type: derivatization reagent reaction type: Acylations
application(s)	gas chromatography (GC): suitable
refractive index	n20/D 1.409 (lit.)
bp	67-68 °C/14 mmHg (lit.)
density	0.854 g/mL at 25 °C (lit.)
SMILES string	CCCOC(OCCC)N(C)C
InChI	1S/C9H21NO2/c1-5-7-11-9(10(3)4)12-8-6-2/h9H,5-8H2,1-4H3
InChI key	NSLGQFIDCADTAS-UHFFFAOYSA-N

Selectophore is a trademark of Sigma-Aldrich Chemie GmbH

pictograms	GHS02,GHS07
signalword	Warning
hcodes	H226 - H315 - H319 - H335
pcodes	P210 - P302 + P352 - P305 + P351 + P338
Target Organs	Respiratory system
Personal Protective Equipment	Eyeshields, Gloves, type ABEK (EN14387) respirator filter
RIDADR	UN 1993C 3 / PGIII
WGK Germany	WGK 3
Flash Point F	114.8 °F - closed cup
Flash Point C	46 °C - closed cup

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N,N-Dimethyltrimethylsilylamine

Empirical Formula (Hill Notation):	C₅H₁₅NSi
Linear Formula:	(CH₃)₃SiN(CH₃)₂
CAS Number:	2083-91-2
Molecular Weight:	117.26
Beilstein/REAXYS Number:	1731861
EC Number:	218-222-3
MDL number:	MFCD00008297
PubChem Substance ID:	329756142

Quality Level	200
grade	for ion-selective electrodes
product line	Selectophore^™
refractive index	n20/D 1.397 (lit.)
bp	84 °C (lit.)
density	0.732 g/mL at 25 °C (lit.)
SMILES string	CN(C)[Si](C)(C)C
InChI	1S/C5H15NSi/c1-6(2)7(3,4)5/h1-5H3
InChI key	KAHVZNKZQFSBFW-UHFFFAOYSA-N

N,O-Bis(trimethylsilyl)acetamide is an excellent silylation reagent. For some sterically hindered primary or secondary nitro compounds, N,O-bis(trimethylsilyl)acetamide and BSTFA achieve better results than normal silylation conditions.

pictograms	GHS02,GHS05
signalword	Danger
hcodes	H225 - H314
pcodes	P210 - P280 - P305 + P351 + P338 - P310
Personal Protective Equipment	Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
RIDADR	UN 2733PSN1 8(3) / PGII
WGK Germany	WGK 3
Flash Point F	10.4 °F - closed cup
Flash Point C	-12 °C - closed cup

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N,O-Bis(trimethylsilyl)acetamide

Empirical Formula (Hill Notation):	C₈H₂₁NOSi₂
Linear Formula:	CH₃C[=NSi(CH₃)₃]OSi(CH₃)₃
CAS Number:	10416-59-8
Molecular Weight:	203.43
Beilstein/REAXYS Number:	1306669
EC Number:	233-892-7
MDL number:	MFCD00008270
PubChem Substance ID:	329750807
NACRES:	NA.22

Learn more in the Product Information
Suitable for the derivatization of 2-amino-2-dexoxyhexoses, ecdysones, hexosamines in glycosaminoglycans, 18-hydroxycorticosteroids, 15-Oxo-prostaglandin F2, prostaglandins A,B and E and F, F2, prostaglandins and metabolites, prostaglandins Emetabolites, sugar phosphates, steroids and testosterone.

Powerful silylating agent
Reagent for o-trimethylsilyl-aldono-1,4-lactones, trimethylsilyl and trimethylsilyl ether.

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Quality Level	100
grade	for GC derivatization
assay	98.5% (GC)
quality	LiChropur^™
reaction suitability	reagent type: derivatization reagent reaction type: Silylations
application(s)	gas chromatography (GC): suitable
refractive index	n20/D 1.417 (lit.), n20/D 1.417
bp	71-73 °C/35 mmHg (lit.)
density	0.832 g/mL at 20 °C (lit.)
SMILES string	C\C(O[Si](C)(C)C)=N/[Si](C)(C)C
InChI	1S/C8H21NOSi2/c1-8(9-11(2,3)4)10-12(5,6)7/h1-7H3/b9-8+
InChI key	SIOVKLKJSOKLIF-CMDGGOBGSA-N

N,O-Bis(trimethylsilyl)trifluoroacetamide (BSTFA) is an excellent silylation reagent. For some sterically hindered primary or secondary nitro compounds, N,O-bis(trimethylsilyl)acetamide and BSTFA achieve better results than normal silylation conditions. BSTFA finds application in derivatizing amines. It is suitable for silyaltion of carboxylic acids, phenols, ureas, amides and alcohols.

pictograms	GHS02,GHS05,GHS07
signalword	Danger
hcodes	H226 - H302 - H314
pcodes	P210 - P233 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338
Supp Hazards	EUH014
Personal Protective Equipment	Eyeshields, Faceshields, Gloves, type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges
RIDADR	UN 2920 3(8) / PGII
WGK Germany	WGK 3
Flash Point F	111.2 °F - closed cup
Flash Point C	44 °C - closed cup

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N,O-Bis(trimethylsilyl)trifluoroacetamide

Empirical Formula (Hill Notation):	C₈H₁₈F₃NOSi₂
Linear Formula:	CF₃C[=NSi(CH₃)₃]OSi(CH₃)₃
CAS Number:	25561-30-2
Molecular Weight:	257.40
Beilstein/REAXYS Number:	2050024
EC Number:	247-103-9
MDL number:	MFCD00008269
PubChem Substance ID:	329750779
NACRES:	NA.22

BSTFA + 1% TMCS (trimethylsilyl) in ethyl acetate, acetonitrile and dichloromethane solvents may be used for silylation of steroid hormone 17a-ethinylestradiol (EE2) using gas chromatography-mass spectrometry (GC-MS). It may also be used for silylation of endogenous 2-monoglyceride, present in canine gut that binds to cannabinoid receptors.
Learn more in the Product Information

1, 10×1, 5, 25 mL in glass bottle

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Quality Level	100
grade	for GC derivatization
assay	99.0% (GC), 99.0%
quality	LiChropur^™
reaction suitability	reagent type: derivatization reagent reaction type: Silylations
application(s)	gas chromatography (GC): suitable
refractive index	n20/D 1.384 (lit.), n20/D 1.384
bp	45-50 °C/14 mmHg (lit.)
density	0.969 g/mL at 25 °C (lit.)
SMILES string	C[Si](C)(C)O\C(=N\[Si](C)(C)C)C(F)(F)F
InChI	1S/C8H18F3NOSi2/c1-14(2,3)12-7(8(9,10)11)13-15(4,5)6/h1-6H3/b12-7+
InChI key	XCOBLONWWXQEBS-KPKJPENVSA-N

pictograms	GHS02,GHS07
signalword	Warning
hcodes	H226 - H315 - H319
pcodes	P210 - P233 - P240 - P241 - P303 + P361 + P353 - P305 + P351 + P338
Personal Protective Equipment	Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
RIDADR	UN 2924 8(3) / PGIII
WGK Germany	WGK 3
Flash Point F	93.2 °F
Flash Point C	34 °C

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N,O-Bis(trimethylsilyl)trifluoroacetamide with trimethylchlorosilane

Empirical Formula (Hill Notation):	C₈H₁₈F₃NOSi₂
Linear Formula:	CF₃C[=NSi(CH₃)₃]OSi(CH₃)₃
CAS Number:	25561-30-2
Molecular Weight:	257.40
Beilstein/REAXYS Number:	2050024
MDL number:	MFCD00008269
PubChem Substance ID:	329750793
NACRES:	NA.22

Learn more in the Product Information

5, 25, 100 mL in glass bottle
Clear borosilicate glass, high hydrolytic resistance (Type I)

The position of the silyl groups has not been unequivocally established. It has been referred to as both N,N and N,O.
Silylating mixture used for the silylation of various compounds

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Quality Level	100
grade	for GC derivatization
assay	98.5% (excluding chlorotrimethylsilane, GC), 99% (excluding TMCS)
quality	LiChropur^™, contains 1% TMCS
reaction suitability	reagent type: derivatization reagent reaction type: Silylations
application(s)	gas chromatography (GC): suitable
refractive index	n20/D 1.384 (lit.)
bp	45-50 °C/14 mmHg (lit.)
density	0.97 g/mL (lit.)
SMILES string	C[Si](C)(C)O\C(=N\[Si](C)(C)C)C(F)(F)F
InChI	1S/C8H18F3NOSi2/c1-14(2,3)12-7(8(9,10)11)13-15(4,5)6/h1-6H3/b12-7+
InChI key	XCOBLONWWXQEBS-KPKJPENVSA-N

N-(1-Naphthyl)ethylenediamine dihydrochloride dissolved in sulfuric acid-methanol may be used as a reagent for the determination of sugar on thin layer plates. It may also be used for the determination of sub-micromolar concentrations of nitrite ion after diazotisation with sulphanilic acid at low pH, by differential-pulse polarography. It may also be used as the coupling agent for the spectrophotometric determination of aniline by the diazotization-coupling method.

pictograms	GHS02,GHS07
signalword	Danger
hcodes	H225 - H315 - H319
pcodes	P210 - P302 + P352 - P305 + P351 + P338
Personal Protective Equipment	Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
RIDADR	UN 2924 8(3) / PGII
WGK Germany	WGK 3
Flash Point F	44.1 °F - closed cup
Flash Point C	6.7 °C - closed cup

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N-(1-Naphthyl)ethylenediamine dihydrochloride

Empirical Formula (Hill Notation):	C₁₂H₁₄N₂ · 2HCl
Linear Formula:	C₁₀H₇NHCH₂CH₂NH₂ · 2HCl
Molecular Weight:	259.17
Beilstein/REAXYS Number:	3707471
EC Number:	215-981-2
MDL number:	MFCD00012556
PubChem Substance ID:	329754555
NACRES:	NA.21

Quality Level	200
grade	ACS reagent, for determination of sulfonamide and nitrite
assay	98% (calc with ref. to anhyd. subst.), 98%
application(s)	UV/Vis spectroscopy: suitable, detection: suitable (of sulfonamide)
impurities	5% water (Karl Fischer)
mp	194-198 °C (dec.) (lit.)
suitability	complies for identity
SMILES string	Cl.Cl.NCCNc1cccc2ccccc12
InChI	1S/C12H14N2.2ClH/c13-8-9-14-12-7-3-5-10-4-1-2-6-11(10)12;;/h1-7,14H,8-9,13H2;2*1H
InChI key	MZNYWPRCVDMOJG-UHFFFAOYSA-N

N-(1-Naphthyl)ethylenediamine dihydrochloride is a hygroscopic analytical reagent generally suitable for determination of drugs, pharmaceuticals with free primary aromatic amino group, sulpha drugs and local anaesthetics. It may decompose on exposure to light.

pictograms	GHS07
signalword	Warning
hcodes	H315 - H319
pcodes	P302 + P352 - P305 + P351 + P338
Personal Protective Equipment	dust mask type N95 (US), Eyeshields, Gloves
RIDADR	NONH for all modes of transport
WGK Germany	WGK 3
Flash Point F	Not applicable
Flash Point C	Not applicable

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N-(1-Naphthyl)ethylenediamine dihydrochloride monomethanolate

Empirical Formula (Hill Notation):	C₁₂H₁₄N₂ · 2HCl · CH₄O
Linear Formula:	C₁₀H₇NHCH₂CH₂NH₂ · 2HCl · MeOH
CAS Number:	1357471-44-3
Molecular Weight:	291.22
Beilstein/REAXYS Number:	3707471
MDL number:	MFCD16661167
PubChem Substance ID:	329762700
NACRES:	NA.21

N-(1-Naphthyl)ethylenediamine dihydrochloride monomethanolate may be used to study antimicrobial effects against bacteria.

Reagent used in the simultaneous spectrophotometric determination of nitrite and nitrate by flow injection analysis

Quality Level	100
assay	99.0% (AT), 99.0%
quality	for spectrophotometric det. of nitrate and nitrite
application(s)	UV/Vis spectroscopy: suitable, thin layer chromatography (TLC): suitable
impurities	1 mol/mol methanol
ign. residue	0.05%
mp	196-199 °C (dec.)
SMILES string	Cl.Cl.CO.NCCNc1cccc2ccccc12
InChI	1S/C12H14N2.CH4O.2ClH/c13-8-9-14-12-7-3-5-10-4-1-2-6-11(10)12;1-2;;/h1-7,14H,8-9,13H2;2H,1H3;2*1H
InChI key	YUMCJWVZLMGNTD-UHFFFAOYSA-N

N-(2,4-Dinitro-5-fluorophenyl)-D-valinamide [D-FDVA] is a derivatizing agent.

pictograms	GHS07,GHS08
signalword	Danger
hcodes	H302 - H315 - H319 - H370
pcodes	P301 + P312 + P330 - P302 + P352 - P305 + P351 + P338 - P308 + P311
Target Organs	Eyes
Personal Protective Equipment	Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges
RIDADR	NONH for all modes of transport
WGK Germany	WGK 3
Flash Point F	Not applicable
Flash Point C	Not applicable

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N-(2,4-Dinitro-5-fluorophenyl)-D-valinamide

Empirical Formula (Hill Notation):	C₁₁H₁₃FN₄O₅
CAS Number:	210529-62-7
Molecular Weight:	300.24
MDL number:	MFCD00155643
PubChem Substance ID:	329756189
NACRES:	NA.22

D-FDVA may be used as derivatizing agent for nullifying the possibility of minor compounds to be diastereomer of xenortide A, during HPLC-MS screening.

Discover LiChropur reagents ideal for HPLC or LC-MS analysis

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Quality Level	100
grade	for chiral derivatization
assay	98.0% (sum of enantiomers, HPLC), 98.0%
optical activity	[]20/D 14.0±1.5°, c = 2% in acetone
optical purity	enantiomeric ratio: 99.5:0.5 (HPLC)
quality	LiChropur^™
application(s)	HPLC: suitable
mp	173-177 °C
storage temp.	2-8°C
SMILES string	CC(C)[C@@H](Nc1cc(F)c(cc1[N+]([O-])=O)[N+]([O-])=O)C(N)=O
InChI	1S/C11H13FN4O5/c1-5(2)10(11(13)17)14-7-3-6(12)8(15(18)19)4-9(7)16(20)21/h3-5,10,14H,1-2H3,(H2,13,17)/t10-/m1/s1
InChI key	ZTFFRKNPAXXEBL-SNVBAGLBSA-N

N-(2,4-Dinitro-5-fluorophenyl)-L-alaninamide (FDAA) is a chiral derivatizing agent (CDA), has high enantioselectivity but low sensitivity as compared to other CDAs. It is generally used to assign the stereochemistry of amino acids in trace amounts.

pictograms	GHS07
signalword	Warning
hcodes	H315 - H319 - H335
pcodes	P302 + P352 - P305 + P351 + P338
Target Organs	Respiratory system
Personal Protective Equipment	dust mask type N95 (US), Eyeshields, Gloves
RIDADR	NONH for all modes of transport
WGK Germany	WGK 3
Flash Point F	Not applicable
Flash Point C	Not applicable

553,00 € / 52 449 ₽

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N-(2,4-Dinitro-5-fluorophenyl)-L-alaninamide

Empirical Formula (Hill Notation):	C₉H₉FN₄O₅
CAS Number:	95713-52-3
Molecular Weight:	272.19
Beilstein/REAXYS Number:	6820069
MDL number:	MFCD00042049
PubChem Substance ID:	329763313
NACRES:	NA.22

FDAA was used as derivatizing reagent, in a study performed to understand unusual amino acids using reversed phase high performance liquid chromatography-electrospray ionization mass spectrometry (RPHPLC-ESI-MS).

Derivatization reagent for the assay of unusual chiral α-amino acid analogs

Discover LiChropur reagents ideal for HPLC or LC-MS analysis

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Quality Level	100
grade	for chiral derivatization
assay	99.0% (sum of enantiomers, TLC), 99.0%
optical activity	[]20/D +56±2°, c = 1% in acetone
optical purity	enantiomeric ratio: 99.5:0.5 (HPLC)
quality	LiChropur^™
application(s)	HPLC: suitable
storage temp.	2-8°C
SMILES string	C[C@H](Nc1cc(F)c(cc1[N+]([O-])=O)[N+]([O-])=O)C(N)=O
InChI	1S/C9H9FN4O5/c1-4(9(11)15)12-6-2-5(10)7(13(16)17)3-8(6)14(18)19/h2-4,12H,1H3,(H2,11,15)/t4-/m0/s1
InChI key	NEPLBHLFDJOJGP-BYPYZUCNSA-N

N-(2,4-Dinitro-5-fluorophenyl)-L-valinamide [L-FDVA] is a derivatizing chiral agent.

pictograms	GHS07
signalword	Warning
hcodes	H315 - H319 - H335
pcodes	P302 + P352 - P305 + P351 + P338
Target Organs	Respiratory system
Personal Protective Equipment	dust mask type N95 (US), Eyeshields, Gloves
RIDADR	NONH for all modes of transport
WGK Germany	WGK 3
Flash Point F	Not applicable
Flash Point C	Not applicable

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N-(2,4-Dinitro-5-fluorophenyl)-L-valinamide

Empirical Formula (Hill Notation):	C₁₁H₁₃FN₄O₅
Linear Formula:	FC₆H₂(NO₂)₂NH[CHCH(CH₃)₂]CONH₂
CAS Number:	132679-61-9
Molecular Weight:	300.24
MDL number:	MFCD00155636
PubChem Substance ID:	329756190
NACRES:	NA.22

L-FDVA may be used as derivatizing agent for amino acids in the isolation and identification of microcystins.

100 mg in glass bottle
Bottomless glass bottle. Contents are inside inserted fused cone.

Chiral derivatizing agent (chiral Sanger′s Reagent) for determining the enantiomeric purity of amino acids with HPLC; This analogue of Marfey′s reagent can also be used with amines

Discover LiChropur reagents ideal for HPLC or LC-MS analysis

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Quality Level	100
grade	for chiral derivatization
assay	98.0% (sum of enantiomers, HPLC), 98.0%
optical activity	[]20/D +14.0±1.5°, c = 2% in acetone
optical purity	enantiomeric ratio: 99.5:0.5 (HPLC)
quality	LiChropur^™
application(s)	HPLC: suitable
mp	173-177 °C (lit.), 173-177 °C
storage temp.	2-8°C
SMILES string	CC(C)[C@H](Nc1cc(F)c(cc1[N+]([O-])=O)[N+]([O-])=O)C(N)=O
InChI	1S/C11H13FN4O5/c1-5(2)10(11(13)17)14-7-3-6(12)8(15(18)19)4-9(7)16(20)21/h3-5,10,14H,1-2H3,(H2,13,17)/t10-/m0/s1
InChI key	ZTFFRKNPAXXEBL-JTQLQIEISA-N

N-(Propionyloxy)succinimide is commonly used as a mobile phase additive in liquid chromatography-mass spectrometry (LC-MS) and its typical application involves the derivatization of histones. It involves the following properties:

pictograms	GHS07
signalword	Warning
hcodes	H315 - H319 - H335
pcodes	P302 + P352 - P305 + P351 + P338
Target Organs	Respiratory system
Personal Protective Equipment	dust mask type N95 (US), Eyeshields, Gloves
RIDADR	NONH for all modes of transport
WGK Germany	WGK 3
Flash Point F	Not applicable
Flash Point C	Not applicable

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N-(5-Hydrazino-2,4-dinitrophenyl)-L-valinamide

Empirical Formula (Hill Notation): C₁₁H₁₆N₆O₅

Molecular Weight: 312.28

PubChem Substance ID: 329756260

NACRES: NA.22

Кат. номер

42717-100MG

42717-VAR

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Discover LiChropur reagents ideal for HPLC or LC-MS analysis
Legal Information
LiChropur is a trademark of Merck KGaA, Darmstadt, Germany
Параметры

Quality Level 100

grade for HPLC derivatization

assay 98.0% (HPLC)

quality LiChropur^™

application(s) HPLC: suitable

storage temp. 2-8°C

Safety Information

RIDADR NONH for all modes of transport

WGK Germany WGK 3

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N-(Propionyloxy)succinimide

Empirical Formula (Hill Notation):	C₇H₉NO₄
CAS Number:	30364-55-7
Molecular Weight:	171.15
MDL number:	MFCD03427483

Extensive QC testing ensures the highest specifications.
Optimized to improve ionization and resolution.
Extremely low levels of inorganic and organic impurities.
Manufactured specifically for accurate and fast LC-MS.

Discover LiChropur™ reagents ideal for HPLC or LC-MS analysis

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Quality Level	100
assay	95% (HPLC)
quality	LiChropur^™, for LC-MS derivatization
reaction suitability	reagent type: derivatization reagent reaction type: Acylations
application(s)	HPLC: suitable
SMILES string	O=C(CCC1=O)N1OC(CC)=O
InChI	1S/C7H9NO4/c1-2-7(11)12-8-5(9)3-4-6(8)10/h2-4H2,1H3
InChI key	AASBXERNXVFUEJ-UHFFFAOYSA-N

Purity (GC): 95.0
Identity (IR-spectrum): conforms

pictograms	GHS07
signalword	Warning
hcodes	H302 - H319
pcodes	P301 + P312 + P330 - P305 + P351 + P338
RIDADR	NONH for all modes of transport
WGK Germany	WGK 3
Flash Point F	Not applicable
Flash Point C	Not applicable

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N-(Trimethylsilyl)imidazole

Empirical Formula (Hill Notation):	C₆H₁₂N₂Si
CAS Number:	18156-74-6
Molecular Weight:	140.26
MDL number:	MFCD00005280
EC Index Number:	242-040-3

N-Heptafluorobutyrylimidazole may be used as a derivatizing agent in the analysis of aminoglycoside drugs such as gentamicin, tobramycin, netihnicin, and amikacin in samples of human serum using gas chromatography (GC).

storage conditions	Store at +5°C to +30°C.
Quality Level	100
autoignition temp.	540 °C (DIN 51794)
application(s)	gas chromatography (GC): suitable
kinematic viscosity	2.5 cSt(25 °C)
bp	212 °C (decomposition)
mp	-42 °C
transition temp	flash point 66 °C (DIN 51755 Part 1)
density	0.955-0.959 g/cm³ at 25 °C
storage temp.	2-30°C
InChI	1S/C6H12N2Si/c1-9(2,3)8-5-4-7-6-8/h4-6H,1-3H3
InChI key	YKFRUJSEPGHZFJ-UHFFFAOYSA-N

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N-Heptafluorobutyrylimidazole

Empirical Formula (Hill Notation):	C₇H₃F₇N₂O
CAS Number:	32477-35-3
Molecular Weight:	264.10
EC Number:	251-063-8
MDL number:	MFCD00014503
PubChem Substance ID:	329765658
NACRES:	NA.22

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Quality Level	100
grade	for GC derivatization
assay	98.0% (GC), 98.5-101.0 wt. % (NT)
quality	LiChropur^™
reaction suitability	reagent type: derivatization reagent reaction type: Acylations
application(s)	gas chromatography (GC): suitable
refractive index	n20/D 1.3865 (lit.)
bp	161 °C (lit.)
density	1.490 g/mL at 25 °C (lit.)
storage temp.	2-8°C
SMILES string	FC(F)(F)C(F)(F)C(F)(F)C(=O)n1ccnc1
InChI	1S/C7H3F7N2O/c8-5(9,6(10,11)7(12,13)14)4(17)16-2-1-15-3-16/h1-3H
InChI key	MSYHGYDAVLDKCE-UHFFFAOYSA-N

N-Isobutyryl-L-cysteine is a chiral derivatizing agent, widely used for the separation of amino acid enantiomers.

RIDADR	NA 1993 / PGIII
WGK Germany	WGK 3
Flash Point F	170.6 °F - closed cup
Flash Point C	77 °C - closed cup

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N-Isobutyryl-L-cysteine

Empirical Formula (Hill Notation):	C₇H₁₃NO₃S
CAS Number:	124529-02-8
Molecular Weight:	191.25
MDL number:	MFCD00155635
eCl@ss:	32160406
PubChem Substance ID:	329758450
NACRES:	NA.22

N-Isobutyryl-L-cysteine may be used as a chiral derivatization agent for the determination of D- and L-amino acids in natural/synthetic bioactive peptides, pharmaceutical formulations and absolute configuration of selenomethionine using chromatography techniques.

Bottomless glass bottle. Contents are inside inserted fused cone.

Chiral derivatizing agent employed in the assay of the enantiomeric purity of amino acids with OPA

Discover LiChropur reagents ideal for HPLC or LC-MS analysis

ChiraSelect is a trademark of Sigma-Aldrich Co. LLC
LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Quality Level	100
grade	for chiral derivatization
product line	ChiraSelect^™
assay	97.0% (RT), 97.0%
optical purity	enantiomeric ratio: 99.5:0.5 (HPLC)
quality	LiChropur^™
application(s)	HPLC: suitable
mp	97-101 °C
storage temp.	2-8°C
SMILES string	CC(C)C(=O)N[C@@H](CS)C(O)=O
InChI	1S/C7H13NO3S/c1-4(2)6(9)8-5(3-12)7(10)11/h4-5,12H,3H2,1-2H3,(H,8,9)(H,10,11)/t5-/m0/s1
InChI key	BWBQXMAXLAHHTK-YFKPBYRVSA-N

Suitable for the derivatization of alcohols and carbohydrates(mono-,di-,tri- and tetrasaccharides.
Reagent for introducing trifluoroacetyl group.

Personal Protective Equipment	Eyeshields, Gloves, type N95 (US)
RIDADR	NONH for all modes of transport
WGK Germany	WGK 3
Flash Point F	Not applicable
Flash Point C	Not applicable

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N-Methyl-bis(trifluoroacetamide)

Empirical Formula (Hill Notation):	C₅H₃F₆NO₂
Linear Formula:	CF₃CON(CH₃)COCF₃
CAS Number:	685-27-8
Molecular Weight:	223.07
Beilstein/REAXYS Number:	1878402
EC Number:	211-680-5
MDL number:	MFCD00000412
PubChem Substance ID:	24896572
NACRES:	NA.22

Reagent for trifluoroacetyl.

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Quality Level	100
grade	for GC derivatization
assay	97.0% (GC)
quality	LiChropur^™
reaction suitability	reagent type: derivatization reagent reaction type: Acetylations, reagent type: derivatization reagent reaction type: Acylations
application(s)	gas chromatography (GC): suitable
refractive index	n20/D 1.346 (lit.)
bp	121-122 °C (lit.)
density	1.547 g/mL at 25 °C
suitability	complies for derivatization
storage temp.	2-8°C
SMILES string	CN(C(=O)C(F)(F)F)C(=O)C(F)(F)F
InChI	1S/C5H3F6NO2/c1-12(2(13)4(6,7)8)3(14)5(9,10)11/h1H3
InChI key	AWGBWLXGUPTXHF-UHFFFAOYSA-N

N-Methyl-bis-heptafluorobutyramide is an acylation reagent for GC/MS derivatization with benefits:

pictograms	GHS02,GHS05
signalword	Danger
hcodes	H226 - H314
pcodes	P210 - P233 - P240 - P280 - P303 + P361 + P353 - P305 + P351 + P338
Personal Protective Equipment	Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
RIDADR	UN 2920 3(8) / PGII
WGK Germany	WGK 3
Flash Point F	113.0 °F - closed cup
Flash Point C	45 °C - closed cup

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N-Methyl-bis-heptafluorobutyramide

Empirical Formula (Hill Notation):	C₉H₃F₁₄NO₂
CAS Number:	73980-71-9
Molecular Weight:	423.10
Beilstein/REAXYS Number:	6986874
MDL number:	MFCD00049280
PubChem Substance ID:	329768133
NACRES:	NA.22

Improves stability of compounds by protecting unstable groups.
It may confer volatility on substances such as carbohydrates or amino acids, which have so many polar groups that they are non-volatile and normally decompose on heating.
It assists in separations not possible with underivatized compounds.
Compounds are detectable at very low levels with an ECD.

Derivatizing agent for amines, alcohols and thiols, forming neutral butyramide

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Quality Level	100
grade	for GC derivatization
assay	96.0% (GC)
quality	LiChropur^™
reaction suitability	reagent type: derivatization reagent reaction type: Acylations
application(s)	gas chromatography (GC): suitable
refractive index	n20/D 1.323
density	1.686 g/mL at 20 °C (lit.)
SMILES string	CN(C(=O)C(F)(F)C(F)(F)C(F)(F)F)C(=O)C(F)(F)C(F)(F)C(F)(F)F
InChI	1S/C9H3F14NO2/c1-24(2(25)4(10,11)6(14,15)8(18,19)20)3(26)5(12,13)7(16,17)9(21,22)23/h1H3
InChI key	BCQYNSPESDDJBZ-UHFFFAOYSA-N

N-Methyl-N-(trimethylsilyl)trifluoroacetamide (MSTFA) is a silylating reagent.

pictograms	GHS07
signalword	Warning
hcodes	H315 - H319 - H335
pcodes	P302 + P352 - P305 + P351 + P338
Target Organs	Respiratory system
Personal Protective Equipment	dust mask type N95 (US), Eyeshields, Gloves
RIDADR	NONH for all modes of transport
WGK Germany	WGK 3
Flash Point F	Not applicable
Flash Point C	Not applicable

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N-Methyl-N-(trimethylsilyl)trifluoroacetamide

Empirical Formula (Hill Notation):	C₆H₁₂F₃NOSi
Linear Formula:	CF₃CON(CH₃)Si(CH₃)₃
CAS Number:	24589-78-4
Molecular Weight:	199.25
Beilstein/REAXYS Number:	1941550
EC Number:	246-331-6
MDL number:	MFCD00000411
PubChem Substance ID:	329761689
NACRES:	NA.22

Learn more in the Product Information
Suitable for the derivatization of amines, amino acids, carboxyl, hydroxyamines, indolalkylamine, n-nitrosoamino acids, nucleosides, phenolalkylamines, serotonin and tryptamine.
MSTFA may be used in silylation procedure to detemine steroid hormones 17-ethinylestradiol (EE2) and estrone using GC-MS. MSTFA along with Trimethylsilyl chloride (TMCS) in eithyl acetate, acetonitrile and dichloromethane solvents leads to formation of trimethylsilyl (TMS) and tert-butyldimethylsilyl (TBS) derivatives.

Powerful silylating agent
Reagent for N-acetyl-N, trifluoroacetyl, trimethylsilyl, N-trimethylsilyl-N-trifluoroacetyl, and O-trimethylsilyl (TMS)

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Quality Level	100
grade	for GC derivatization
vapor density	>1 (vs air)
vapor pressure	8.8 mmHg ( 27 °C)
assay	98.5% (GC), 98.5%
quality	LiChropur^™
reaction suitability	reagent type: derivatization reagent reaction type: Silylations
application(s)	gas chromatography (GC): suitable
refractive index	n20/D 1.38 (lit.), n20/D 1.380
bp	130-132 °C (lit.)
density	1.075 g/mL at 25 °C (lit.)
storage temp.	2-8°C
SMILES string	CN(C(=O)C(F)(F)F)[Si](C)(C)C
InChI	1S/C6H12F3NOSi/c1-10(12(2,3)4)5(11)6(7,8)9/h1-4H3
InChI key	MSPCIZMDDUQPGJ-UHFFFAOYSA-N

Silylation can be performed by adding N-Methyl-N-(trimethylsilyl)trifluoroacetamide (MTFA) during analysis of fluorometabolites via gas chromatography-mass spectrometry (GC-MS).

pictograms	GHS02,GHS07
signalword	Warning
hcodes	H226 - H315 - H319 - H335
pcodes	P210 - P233 - P240 - P241 - P303 + P361 + P353 - P305 + P351 + P338
Target Organs	Respiratory system
Personal Protective Equipment	Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
RIDADR	UN 1993C 3 / PGIII
WGK Germany	WGK 3
Flash Point F	77.0 °F - closed cup
Flash Point C	25 °C - closed cup

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N-Methyl-N-(trimethylsilyl)trifluoroacetamide with 1% trimethylchlorosilane

Empirical Formula (Hill Notation):	C₆H₁₂F₃NOSi
CAS Number:	24589-78-4
Molecular Weight:	199.25
Beilstein/REAXYS Number:	1941550
MDL number:	MFCD00000411
PubChem Substance ID:	329761687
NACRES:	NA.22

Addition of Trimethylchlorosilane aids in the derivatization of amides, secondary amines and hindered hydroxy groups. Most volatile of the TMS derivatives often elutes at the solvent front of the GC.

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Quality Level	100
grade	for GC derivatization
assay	97.0%
quality	LiChropur^™
reaction suitability	reagent type: derivatization reagent reaction type: Silylations
application(s)	gas chromatography (GC): suitable
refractive index	n20/D 1.378
SMILES string	CN(C(=O)C(F)(F)F)[Si](C)(C)C
InChI	1S/C6H12F3NOSi/c1-10(12(2,3)4)5(11)6(7,8)9/h1-4H3
InChI key	MSPCIZMDDUQPGJ-UHFFFAOYSA-N

N-Methyl-N-trimethylsilylacetamide is a trialkyl-silyl reagent and a versatile derivatizing agent used in gas chromatography (GC).

pictograms	GHS02,GHS07
signalword	Warning
hcodes	H226 - H315 - H319 - H335
pcodes	P210 - P261 - P280 - P304 + P340 + P312 - P370 + P378 - P403 + P235
Target Organs	Respiratory system
Personal Protective Equipment	Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
RIDADR	UN 1993C 3 / PGIII
WGK Germany	WGK 3
Flash Point F	78.8 °F - closed cup
Flash Point C	26 °C - closed cup

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N-Methyl-N-trimethylsilylacetamide

Empirical Formula (Hill Notation):	C₆H₁₅NOSi
CAS Number:	7449-74-3
Molecular Weight:	145.27
Beilstein/REAXYS Number:	506975
EC Number:	231-217-0
MDL number:	MFCD00040758
PubChem Substance ID:	329761691
NACRES:	NA.22

N-Methyl-N-trimethylsilylacetamide may be used as a derivatizing reagent for the following:

Quantification of the carbohydrate intermediates in glycation systems using gas chromatography coupled to mass spectrometry technique.
Characterization of damaged products of thymine and cytosine formed by the exposure to UV light in a hydrogen peroxide solution using gas chromatography/mass spectrometry with scan mode and selected ion monitoring mode.

Powerful silylating agent for polar compounds

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Quality Level	100
grade	for GC derivatization
assay	97.0% (GC)
quality	LiChropur^™
reaction suitability	reagent type: derivatization reagent reaction type: Silylations
application(s)	gas chromatography (GC): suitable
refractive index	n20/D 1.439
bp	159-161 °C (lit.)
density	0.904 g/mL at 20 °C (lit.)
storage temp.	20°C
SMILES string	CN(C(C)=O)[Si](C)(C)C
InChI	1S/C6H15NOSi/c1-6(8)7(2)9(3,4)5/h1-5H3
InChI key	QHUOBLDKFGCVCG-UHFFFAOYSA-N

pictograms	GHS02
signalword	Warning
hcodes	H226
Personal Protective Equipment	Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
RIDADR	UN 1993C 3 / PGIII
WGK Germany	WGK 3
Flash Point F	118.4 °F - closed cup
Flash Point C	48.0 °C - closed cup

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N-Methyl-N-trimethylsilylheptafluorobutyramide

Empirical Formula (Hill Notation):	C₈H₁₂F₇NOSi
Linear Formula:	CF₃CF₂CF₂CON(CH₃)Si(CH₃)₃
CAS Number:	53296-64-3
Molecular Weight:	299.26
Beilstein/REAXYS Number:	6512894
MDL number:	MFCD00077822
PubChem Substance ID:	329761696
NACRES:	NA.22

1, 5 mL in glass bottle

N-methyl-N-trimethylsilylheptafluorobutyramide (MSHFBA) has been used in the silylation reaction during GC analysis of samples containing 1-monoolein, 2-monoolein, 1,2-diolein, 1,3-diolein, ethyl oleate, oleic acid and triolein.
Silylating agent for use in GC-analyses. It interferes least with flame-ionization detectors

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Quality Level	100
grade	for GC derivatization
assay	90% (GC)
quality	LiChropur^™
reaction suitability	reagent type: derivatization reagent reaction type: Silylations
application(s)	gas chromatography (GC): suitable
refractive index	n20/D 1.353 (lit.), n20/D 1.353
bp	148 °C (lit.)
density	1.254 g/mL at 25 °C (lit.)
SMILES string	CN(C(=O)C(F)(F)C(F)(F)C(F)(F)F)[Si](C)(C)C
InChI	1S/C8H12F7NOSi/c1-16(18(2,3)4)5(17)6(9,10)7(11,12)8(13,14)15/h1-4H3
InChI key	CMXKINNDZCNCEI-UHFFFAOYSA-N

pictograms	GHS02,GHS07
signalword	Warning
hcodes	H226 - H315 - H319 - H335
pcodes	P210 - P302 + P352 - P305 + P351 + P338
Target Organs	Respiratory system
Personal Protective Equipment	Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
RIDADR	UN 1993C 3 / PGIII
WGK Germany	WGK 3
Flash Point F	91.4 °F - closed cup
Flash Point C	33 °C - closed cup

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N-Methyl-N-trimethylsilyltrifluoroacetamide activated I

Derivatizing agent for the trimethylsilylation of -OH and -NH groups for GC and GC-MS
Suitable for the silylation of testosterone.

Features and Benefits

Activated with ethanethiol and ammonium iodide.
This mixture is equivalent to a 1000:2 mixture of MSTFA and iodotrimethylsilane.

Clear borosilicate glass, high hydrolytic resistance (Type I)

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Quality Level	100
grade	for GC derivatization
quality	LiChropur^™
reaction suitability	reagent type: derivatization reagent reaction type: Silylations
application(s)	gas chromatography (GC): suitable
refractive index	n20/D 1.380
storage temp.	2-8°C

pictograms	GHS02,GHS07,GHS09
signalword	Warning
hcodes	H226 - H315 - H319 - H335 - H411
pcodes	P210 - P273 - P302 + P352 - P305 + P351 + P338
Target Organs	Respiratory system
Personal Protective Equipment	Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
RIDADR	UN 1993C 3 / PGIII
WGK Germany	WGK 3
Flash Point F	78.8 °F
Flash Point C	26 °C

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N-Methyl-N-trimethylsilyltrifluoroacetamide activated II

EC Number:	246-331-6
NACRES:	NA.22

Derivatizing agent for the trimethylsilylation of -OH and -NH groups for GC and GC-MS
Suitable for the silylation of testosterone, tested by GCMS

Features and Benefits

Activated with trimethylsily-ethanethiol.
This mixture is equivalent to a 1000:2 mixture of MSTFA and iodotrimethylsilane.

This mixture is equivalent to a 1000 : 2 mixture of MSTFA and iodotrimethylsilane.

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Quality Level	100
grade	for GC derivatization
quality	LiChropur^™
reaction suitability	reagent type: derivatization reagent reaction type: Silylations
application(s)	gas chromatography (GC): suitable
refractive index	n20/D 1.380
storage temp.	2-8°C

2,2,2-trifluoro-N-methyl-N-trimethylsilylacetamide (N-Methyl-N-trimethylsilyltrifluoroacetamide activated III) may be used for derivatization, in an experimental study conducted to perform determination of scopolamine in human serum, by capillary column gas chromatographic-ion trap tandem mass spectrometric.

pictograms	GHS02,GHS07
signalword	Warning
hcodes	H226 - H315 - H319 - H335
pcodes	P210 - P302 + P352 - P305 + P351 + P338
Target Organs	Respiratory system
Personal Protective Equipment	Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
RIDADR	UN 1993C 3 / PGIII
WGK Germany	WGK 3
Flash Point F	78.8 °F
Flash Point C	26 °C

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N-Methyl-N-trimethylsilyltrifluoroacetamide activated III

CAS Number:	24589-78-4
Beilstein/REAXYS Number:	1941550
MDL number:	MFCD00000411
PubChem Substance ID:	329749629
NACRES:	NA.22

Analysis Note

Derivatizing agent for the per(trimethylsilylation) of analytes for GC and GC-MS

Derivatizing agent for the per(trimethylsilylation) of analytes for GC and GC-MS

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Quality Level	100
grade	for GC derivatization
quality	LiChropur^™
reaction suitability	reagent type: derivatization reagent reaction type: Silylations
application(s)	gas chromatography (GC): suitable
refractive index	n20/D 1.383
storage temp.	2-8°C
SMILES string	CN(C(=O)C(F)(F)F)[Si](C)(C)C
InChI	1S/C6H12F3NOSi/c1-10(12(2,3)4)5(11)6(7,8)9/h1-4H3
InChI key	MSPCIZMDDUQPGJ-UHFFFAOYSA-N

pictograms	GHS02,GHS05,GHS07,GHS08
signalword	Danger
hcodes	H226 - H315 - H318 - H335 - H360D
pcodes	P201 - P210 - P280 - P302 + P352 - P305 + P351 + P338 + P310 - P308 + P313
Target Organs	Respiratory system
Personal Protective Equipment	Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
RIDADR	UN 1993C 3 / PGIII
WGK Germany	WGK 3
Flash Point F	78.8 °F - closed cup - Solvent
Flash Point C	26 °C - closed cup - Solvent

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N-Succinimidyl 4-(dimethylamino)benzoate

Empirical Formula (Hill Notation):	C₁₃H₁₄N₂O₄
CAS Number:	58068-85-2
Molecular Weight:	262.26
Beilstein/REAXYS Number:	1479401
MDL number:	MFCD16875522
PubChem Substance ID:	329759396
NACRES:	NA.22

Discover LiChropur reagents ideal for HPLC or LC-MS analysis

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Quality Level	100
grade	for HPLC derivatization
assay	98.0% (HPLC)
quality	LiChropur^™
application(s)	HPLC: suitable
SMILES string	CN(C)C1=CC=C(C(ON(C(CC2)=O)C2=O)=O)C=C1
InChI	1S/C13H14N2O4/c1-14(2)10-5-3-9(4-6-10)13(18)19-15-11(16)7-8-12(15)17/h3-6H,7-8H2,1-2H3
InChI key	FNGFZOAQGYOQTG-UHFFFAOYSA-N

N-tert-Butyl-a-phenylnitrone was used as spin trapping agent during measurement of scavenging rate constant of carotenoid using EPR spin-trapping technique. This reagent helps in obtaining a six-line ESR spectrum and hyperfine coupling constants, confirming the presence of carbon-based radical in uric acid and peroxynitrite, using electron spin resonance spectroscopy and liquid chromatography mass spectrometry.

RIDADR	NONH for all modes of transport
WGK Germany	WGK 3
Flash Point F	Not applicable
Flash Point C	Not applicable

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N-tert-Butyl--phenylnitrone

Empirical Formula (Hill Notation):	C₁₁H₁₅NO
Linear Formula:	C₆H₅CH=N(O)C(CH₃)₃
CAS Number:	3376-24-7
Molecular Weight:	177.24
Beilstein/REAXYS Number:	2044028
EC Number:	222-168-6
MDL number:	MFCD00008799
PubChem Substance ID:	329768721
NACRES:	NA.21

Biochem/physiol Actions

N-tert-butyl--phenylnitrone (PBN) is a commonly used free-radical spin trap. It has been shown to reduce the number of emboli-induced cerebral microinfarctions in the rabbit cortex and prevent neoplasia by its radical scavenging activity and its ability to inhibit cyclooxygenase-2 activity. Reported to inhibit the induction of nitric oxide synthase (iNOS), thereby preventing the overproduction of nitric oxide (NO). PBN in a dose of 100 mg/kg i.p. reduced necrosis of the substantia nigra, pars reticulate in flurothyl-induced status epilepticus in rats. It protects against some types of post-trauma epileptogenic events in an animal model of epilepsy. The lethal dose of PBN in rats was found to be approximately 100 mg/100 g body weight (0.564 mmol/100 g).

grade	for ESR-spectroscopy
Quality Level	100
assay	99.5% (HPLC)
mp	72-74 °C, 73-74 °C (lit.)
solubility	chloroform: 50 mg/mL, clear, colorless
storage temp.	20°C
SMILES string	CC(C)(C)[N+](\[O-])=C\c1ccccc1
InChI	1S/C11H15NO/c1-11(2,3)12(13)9-10-7-5-4-6-8-10/h4-9H,1-3H3/b12-9-
InChI key	IYSYLWYGCWTJSG-XFXZXTDPSA-N

N-tert-Butyldimethylsilyl-N-methyltrifluoroacetamide is a silylating reagent which replaces the active hydrogen with tert-Butyldimethylsilyl group. The tert-Butyldimethylsilyl derivatives are found to be more resistant to hydrolysis and stable compared to trimethylsilyl (TMS) derivatives. This reagent is suitable for GC-MS analysis since it produces mass spectra, which can be easily interpreted. It is widely used for the silylation of different alcohols, thiols, phenols, carboxylic acids, amines, and amides.

RIDADR	NONH for all modes of transport
WGK Germany	WGK 3
Flash Point F	Not applicable
Flash Point C	Not applicable

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N-tert-Butyldimethylsilyl-N-methyltrifluoroacetamide

Empirical Formula (Hill Notation):	C₉H₁₈F₃NOSi
Linear Formula:	CF₃CON(CH₃)Si(CH₃)₂C(CH₃)₃
CAS Number:	77377-52-7
Molecular Weight:	241.33
Beilstein/REAXYS Number:	3606546
MDL number:	MFCD00009671
NACRES:	NA.22

N-tert-Butyldimethylsilyl-N-methyltrifluoroacetamide may be used as a derivatizing reagent for the determination of methionine sulfoxide and methionine in blood plasma and chlorpyrifos, diazinon and their major metabolites in sludge and sludge-fertilized agricultural soils using gas-chromatography coupled to mass spectrometry technique.

Discover LiChropur™ reagents ideal for HPLC or LC-MS analysis

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

grade	for GC derivatization
assay	99.0% (GC)
quality	LiChropur^™
reaction suitability	reagent type: derivatization reagent reaction type: Silylations
application(s)	gas chromatography (GC): suitable
refractive index	n20/D 1.402 (lit.)
bp	172-175 °C (lit.)
density	1.036 g/mL at 25 °C (lit.)
storage temp.	2-8°C
SMILES string	CN(C(=O)C(F)(F)F)[Si](C)(C)C(C)(C)C
InChI	1S/C9H18F3NOSi/c1-8(2,3)15(5,6)13(4)7(14)9(10,11)12/h1-6H3
InChI key	QRKUHYFDBWGLHJ-UHFFFAOYSA-N

Neocuproine hemihydrate may be used as an analytical reagent for the determination of copper in water-ethanol solution using thermal-lens spectrometry and captopril in pure form and pharmaceutical formulations via complex formation followed by a series of reactions using spectrophotometric technique.

pictograms	GHS02
signalword	Warning
hcodes	H226
pcodes	P210 - P233 - P240 - P241 - P242 - P243
RIDADR	UN 1993C 3 / PGIII
WGK Germany	WGK 3
Flash Point F	113.0 °F - closed cup
Flash Point C	45 °C - closed cup

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Neocuproine hemihydrate

Empirical Formula (Hill Notation):	C₁₄H₁₂N₂ · 0.5H₂O
CAS Number:	34302-69-7
Molecular Weight:	217.27
Beilstein/REAXYS Number:	153179
EC Number:	207-601-9
MDL number:	MFCD00149306
PubChem Substance ID:	329763751
NACRES:	NA.21

1, 5 g in glass bottle

Reagent for the spectrophotometric determination of copper

Quality Level	100
assay	≥99.0% (NT), ≥99.0%
quality	for spectrophotometric det. of Cu
application(s)	UV/Vis spectroscopy: suitable
mp	159-164 °C
solubility	methanol: 0.1 g/mL, clear
SMILES string	O.Cc1ccc2ccc3ccc(C)nc3c2n1
InChI	1S/C14H12N2.H2O/c1-9-3-5-11-7-8-12-6-4-10(2)16-14(12)13(11)15-9;/h3-8H,1-2H3;1H2
InChI key	MFZBSWSCIWCRKS-UHFFFAOYSA-N

Neocuproine hydrochloride monohydrate has been used in measuring copper dissolution in Cu–Ni alloys using colorimetric method. It has also been used in preparing complexing agent solution in studying the antioxidant capacity assays in biological samples based on Cu reducing complexes. It may be used as a precursor for the preparation of neocuproine, used as an analytical reagent for the determination of copper in environmental samples using spectrophotometric technique.
Neocuproine hydrochloride monohydrate has been used in measuring copper dissolution in Cu–Ni alloys using colorimetric method. It has also been used in preparing complexing agent solution in studying the antioxidant capacity assays in biological samples based on Cu reducing complexes.

pictograms	GHS05,GHS07
signalword	Danger
hcodes	H302 - H315 - H318 - H335
pcodes	P280 - P301 + P312 + P330 - P302 + P352 - P305 + P351 + P338 + P310
Target Organs	Respiratory system
Personal Protective Equipment	dust mask type N95 (US), Eyeshields, Gloves
RIDADR	NONH for all modes of transport
WGK Germany	WGK 3
Flash Point F	Not applicable
Flash Point C	Not applicable

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Neocuproine hydrochloride monohydrate

Empirical Formula (Hill Notation):	C₁₄H₁₂N₂ · HCl · H₂O
CAS Number:	303136-82-5
Molecular Weight:	262.73
Beilstein/REAXYS Number:	4584190
MDL number:	MFCD00150062
PubChem Substance ID:	329763761
NACRES:	NA.21

Quality Level	100
assay	99.0% (AT), 99.0%
quality	for spectrophotometric det. of Cu
application(s)	UV/Vis spectroscopy: suitable
solubility	H₂O: 25 mg/mL, clear
SMILES string	Cl[H].[H]O[H].Cc1ccc2ccc3ccc(C)nc3c2n1
InChI	1S/C14H12N2.ClH.H2O/c1-9-3-5-11-7-8-12-6-4-10(2)16-14(12)13(11)15-9;;/h3-8H,1-2H3;1H;1H2
InChI key	APDYLFLZNGECIM-UHFFFAOYSA-N

Identity (IR-spectrum): conforms
Appearance: White to yellow or brownish white crystalline powder or crystals.
Solubility (10g/l, water): conforms
Melting point: about 250
Suitability for amino acid analysis: conforms

Personal Protective Equipment	dust mask type N95 (US), Eyeshields, Gloves
RIDADR	NONH for all modes of transport
WGK Germany	WGK 3
Flash Point F	Not applicable
Flash Point C	Not applicable

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Ninhydrin

Empirical Formula (Hill Notation):	C₉H₆O₄
CAS Number:	485-47-2
Molecular Weight:	178.14
MDL number:	MFCD00003791
EC Index Number:	207-618-1

Кат. номер
1067621000
1067620100
1067620010
1.06762.0010
1.06762.1000
1.06762.0100
IN21067620010

Analysis Note

Ninhydrin reagent is mostly used for the detection of amino acids. It basically gives a characteristic purple color on reaction with a-amino acids and other amino compounds, provided the pH of the reaction is 5.0 or higher. At an acid pH of 0.3, the reaction of ninhydrin with ornithinine and proline results in a red color product. Ninhydrin reagent can stay stable at room temperature in the absence of nitrogen atmosphere for upto 1 month in the ethylene glycol-sodium acetate solvent system.

storage conditions	Store at +15°C to +25°C.
Quality Level	100
grade	ACS reagent
Agency/Method	reag. Ph. Eur.
potency	600 mg/kg LD₅₀, oral (Rat)
pH	4.6-5.0 (20 °C, 10 g/L in H₂O)
mp	250-258 °C (decomposition)
bulk density	680 kg/m³
storage temp.	15-25°C
InChI	1S/C9H6O4/c10-7-5-3-1-2-4-6(5)8(11)9(7,12)13/h1-4,12-13H
InChI key	FEMOMIGRRWSMCU-UHFFFAOYSA-N

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Ninhydrin reagent according to Stahl

1 g ninhydrin dissolved in 475 mL 1-butanol and 25 mL acetic acid
Ninhydrin reagent may be used for the quantitative determination of total protein content in tissue hydrolysates.

Quality Level	100
grade	for TLC derivatization
application(s)	thin layer chromatography (TLC): suitable
impurities	1-butanol, acetic acid
density	0.823 g/mL at 20 °C

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pictograms	GHS02,GHS05,GHS07
signalword	Danger
hcodes	H226 - H302 - H315 - H318 - H335 - H336
pcodes	P210 - P233 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338
Personal Protective Equipment	Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
RIDADR	UN1120 - class 3 - PG 3 - Butanols
WGK Germany	WGK 2
Flash Point F	93.2 °F - closed cup
Flash Point C	34 °C - closed cup

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Nitrate ion standard solution

CAS Number:	7757-79-1
MDL number:	MFCD00011409
PubChem Substance ID:	329764160
NACRES:	NB.61

Nitrate ion standard solution may be used for the preparation of ion-selective membranes and electrodes used in the evaluation of soil macronutrients for testing the soil fertility.

Preparation Note

prepared with KNO3 and H2O

Quality Level	200
grade	for ion-selective electrodes
shelf life	limited shelf life, expiry date on the label
concentration	0.01 M NO₃^-
density	1.00 g/mL at 20 °C
SMILES string	[K+].[O-][N+]([O-])=O
InChI	1S/K.NO3/c;2-1(3)4/q+1;-1
InChI key	FGIUAXJPYTZDNR-UHFFFAOYSA-N

This certified eluent concentrate for ion chromatography is traceable by potentiometric titration to NIST Standard Reference Material. It is certified in accordance with ISO Guide 31. All details about exact content, uncertainty, traceability and expiry date are described in the certificate.

Personal Protective Equipment	Eyeshields, Gloves
RIDADR	NONH for all modes of transport
WGK Germany	nwg
Flash Point F	Not applicable
Flash Point C	Not applicable

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Nitric acid concentrate

Empirical Formula (Hill Notation):	HNO₃
CAS Number:	7697-37-2
Molecular Weight:	63.01
MDL number:	MFCD00011349
eCl@ss:	38060304
PubChem Substance ID:	329751195
NACRES:	NB.21

Nitric acid concentrate may be used, during removal of siloxanes in biogases.

Linkage

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Preparation Note

Prepared with nitric acid and high purity water (18.2 MΩ, 0.2 μm filtered)

Quality Level	100
concentration	0.1 M HNO₃ in water (0.1N)
application(s)	immunocytochemistry: suitable
SMILES string	O[N+]([O-])=O
InChI	1S/HNO3/c2-1(3)4/h(H,2,3,4)
InChI key	GRYLNZFGIOXLOG-UHFFFAOYSA-N