Sigma-Aldrich

Maleic acid has been used in the preparation of tris-maleate buffer and sodium maleate buffer. It has also been used for the pretreatment of poplar tracheid cell walls for the spectroscopic analysis of lignin. It may be used to synthesize superswelling acrylamide/maleic acid hydrogels.

25 kg in poly drum
1 kg in poly bottle
100, 500 g in poly bottle

Quality

Repurified

ReagentPlus is a registered trademark of Sigma-Aldrich Co. LLC

Quality Level	200
product line	ReagentPlus^®
assay	99% (HPLC)
form	powder
impurities	2.0% water
ign. residue	0.1%
pKa (25 °C)	(1) 1.97, (2) 6.24
mp	130-135 °C (lit.)
density	1.59 g/mL at 25 °C (lit.)
SMILES string	OC(=O)\C=C/C(O)=O
InChI	1S/C4H4O4/c5-3(6)1-2-4(7)8/h1-2H,(H,5,6)(H,7,8)/b2-1-
InChI key	VZCYOOQTPOCHFL-UPHRSURJSA-N

Maleic acid is a dicarboxylic acid. It can be synthesized from crotonaldehyde.

pictograms	GHS05,GHS07
signalword	Danger
hcodes	H302 + H312 - H315 - H317 - H318 - H335
pcodes	P261 - P264 - P280 - P301 + P312 - P302 + P352 + P312 - P305 + P351 + P338
Target Organs	Respiratory system
RIDADR	UN 3077 9 / PGIII
WGK Germany	WGK 1

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Maleic acid 63189-1KG

Empirical Formula (Hill Notation):	C₄H₄O₄
Linear Formula:	HO₂CCH=CHCO₂H
Molecular Weight:	116.07
Beilstein/REAXYS Number:	605762
EC Number:	203-742-5
MDL number:	MFCD00063177
PubChem Substance ID:	329759809

General description

Maleic acid may be used in the synthesis of (R,S)-malic acid and fumaric acid. It may be employed as an anionic monomer in the preparation of superswelling acrylamide (AAm)/maleic acid (MA) hydrogels.†

Quality Level	100
Agency/Method	USP/NF, tested according to Ph. Eur.
assay	99.0-101.0% substance (anhydrous) basis
form	fine crystals, powder
mp	130-135 °C (lit.)
solubility	water: soluble 478.8 g/L at 20 °C
density	1.59 g/mL at 25 °C (lit.)
cation traces	Fe: ≤5 ppm, heavy metals: ≤10 ppm
Featured Industry	Pharmaceutical (small molecule)
storage temp.	2-8°C
SMILES string	OC(=O)\C=C/C(O)=O
InChI	1S/C4H4O4/c5-3(6)1-2-4(7)8/h1-2H,(H,5,6)(H,7,8)/b2-1-
InChI key	VZCYOOQTPOCHFL-UPHRSURJSA-N

Malic acid is a dicarboxylic acid that can be prepared by hydration of maleic acid or fumaric acid. Its ability to prevent the oxidative degradation of lipids has been assessed. The impact of malic acid in the alteration of calcium chloride crystal morphology has been studied. The dissolution kinetics of kaolinite in malic acid have been reported. This product is a high quality pharmacopoeia product that meets the testing specifications of USP (United States Pharmacopoeia). It can be employed in research and pilot studies.

pictograms	GHS05, GHS07
signalword	Danger
hcodes	H302 + H312-H315-H317-H318-H335
pcodes	P280-P301 + P312 + P330-P305 + P351 + P338 + P310
Personal Protective Equipment	dust mask type N95 (US), Eyeshields, Faceshields, Gloves
RIDADR	UN 3077 9 / PGIII
WGK Germany	1
Flash Point F	260.6 °F
Flash Point C	127 °C

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Malic acid

Empirical Formula (Hill Notation):	C₄H₆O₅
Linear Formula:	HO₂CCH₂CH(OH)CO₂H
CAS Number:	6915-15-7
Molecular Weight:	134.09
Beilstein/REAXYS Number:	1723539
EC Number:	230-022-8
MDL number:	MFCD00064212
PubChem Substance ID:	24897242
NACRES:	NA.21

100 g in poly bottle

Agency/Method	meets USP/NF testing specifications
Quality Level	200
vapor density	4.6 (vs air)
vapor pressure	<0.1 mmHg ( 20 °C)
autoignition temp.	644 °F
mp	131-133 °C (lit.)
Featured Industry	Pharmaceutical (small molecule)
SMILES string	OC(CC(O)=O)C(O)=O
InChI	1S/C4H6O5/c5-2(4(8)9)1-3(6)7/h2,5H,1H2,(H,6,7)(H,8,9)
InChI key	BJEPYKJPYRNKOW-UHFFFAOYSA-N

Malonic acid (MA), also known as propanedioic acid, is a dicarboxylic acid. The crystals of MA are triclinic at room temperature. The oxidation of malonic acid by cerium (IV) in sulfuric acid solution has been studied. The reaction kinetics of the photocatalytic decomposition of MA in aqueous suspensions of titanium dioxide (TiO2) have been described.

pictograms	GHS07
signalword	Warning
hcodes	H319
pcodes	P264 - P280 - P305 + P351 + P338 - P337 + P313
Personal Protective Equipment	dust mask type N95 (US), Eyeshields, Gloves
RIDADR	NONH for all modes of transport
WGK Germany	WGK 3
Flash Point F	397.4 °F
Flash Point C	203 °C

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Malonic acid

Empirical Formula (Hill Notation):	C₃H₄O₄
Linear Formula:	CH₂(COOH)₂
CAS Number:	141-82-2
Molecular Weight:	104.06
Beilstein/REAXYS Number:	1751370
EC Number:	205-503-0
MDL number:	MFCD00002707
PubChem Substance ID:	24896631

Malonic acid may be used as a cross-linking agent between corn starch and potato starch to improve its mechanical properties.

5, 100, 500 g in poly bottle
2.5 kg in poly bottle
5 kg in poly drum

Go to Redi-Dri™ Product Listing 792535

ReagentPlus is a registered trademark of Sigma-Aldrich Co. LLC
Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

Quality Level	200
product line	ReagentPlus^®
assay	99%
form	chunks, granular, powder or crystals
mp	132-135 °C (dec.) (lit.)
solubility	1 M NaOH: 100 mg/mL, clear to slightly hazy, colorless to faintly yellow
SMILES string	OC(=O)CC(O)=O
InChI	1S/C3H4O4/c4-2(5)1-3(6)7/h1H2,(H,4,5)(H,6,7)
InChI key	OFOBLEOULBTSOW-UHFFFAOYSA-N
Gene Information	human ... SRC(6714)

Assay (iodometric): 98.0 %
Melting range (lower value): 151 °C
Melting range (upper value): 154 °C
Identity (IR): passes test

pictograms	GHS05
signalword	Danger
hcodes	H318
pcodes	P280 - P305 + P351 + P338
Personal Protective Equipment	dust mask type N95 (US), Eyeshields, Faceshields, Gloves
RIDADR	NONH for all modes of transport
WGK Germany	WGK 1
Flash Point F	314.6 °F
Flash Point C	157 °C

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Mercaptosuccinic acid

Empirical Formula (Hill Notation):	C₄H₆O₄S
Linear Formula:	HOOCCH₂CH(SH)COOH
CAS Number:	70-49-5
Molecular Weight:	150.15
MDL number:	MFCD00004860
EC Index Number:	200-736-4

storage conditions	Store below +30°C.
Quality Level	200
mp	150-153 °C
solubility	500 g/L
storage temp.	2-30°C
InChI	1S/C4H6O4S/c5-3(6)1-2(9)4(7)8/h2,9H,1H2,(H,5,6)(H,7,8)
InChI key	NJRXVEJTAYWCQJ-UHFFFAOYSA-N

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meta-Phosphoric acid

Linear Formula:	(HPO₃)_n
CAS Number:	37267-86-0
MDL number:	MFCD00011351
PubChem Substance ID:	329752524
NACRES:	NA.21

Quality Level	200
grade	ACS reagent
assay	33.5-36.5%
form	chips
contains	57.0-63.0% sodium phosphite as stabilizer
density	2 g/cm³
anion traces	MnO₄^- reducers: 0.02%, chloride (Cl^-): 0.001%, nitrate (NO₃^-): 0.001%, sulfate (SO₄^2-): 0.005%
cation traces	As: 1 ppm, Fe: 0.005%, heavy metals: 0.005% (by ICP)
SMILES string	OP(=O)=O
InChI	1S/HO3P/c1-4(2)3/h(H,1,2,3)
InChI key	UEZVMMHDMIWARA-UHFFFAOYSA-N

Assay (GC, area%): 99 %
Density (d 20°C/ 4°C): 1.013 - 1.015
Identity (IR): passes test

pictograms	GHS05
signalword	Danger
hcodes	H314
pcodes	P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P363
RIDADR	UN 3260 8 / PGIII
WGK Germany	WGK 3
Flash Point F	Not applicable
Flash Point C	Not applicable

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Methacrylic acid

Empirical Formula (Hill Notation):	C₄H₆O₂
Linear Formula:	CH₂C(CH₃)COOH
CAS Number:	79-41-4
Molecular Weight:	86.09
MDL number:	MFCD00002651
EC Index Number:	201-204-4

Кат. номер
8005780500
8005789025
8005782500
8005789999
8005780100
8.00578.2500
8.00578.0500
8.00578.0100

Analysis Note

Methanesulfonic acid (MSA) is a strong organic acid. The chemical oxidation of dimetyl sulfide in the atmosphere leads to the formation of MSA in large quantities. MSA undergoes biodegradation by forming CO2 and sulphate. It is considered a green acid as it is less toxic and corrosive in comparison to mineral acids.1 The aqueous MSA solution has been considered a model electrolyte for electrochemical processes.

storage conditions	Store at +15°C to +25°C.
Quality Level	200
vapor pressure	<1 hPa ( 20 °C)
assay	99% (GC)
form	liquid
autoignition temp.	370 °C
potency	1320 mg/kg LD₅₀, oral (Rat)
expl. lim.	1.6-8.7 % (v/v)
pH	2.0-2.2 (20 °C, 100 g/L in H₂O)
bp	161 °C/1013 hPa
mp	15 °C
transition temp	flash point 65 °C
density	1.015 g/cm³ at 20 °C
storage temp.	15-25°C
InChI	1S/C4H6O2/c1-3(2)4(5)6/h1H2,2H3,(H,5,6)
InChI key	CERQOIWHTDAKMF-UHFFFAOYSA-N

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Methanesulfonic acid

Empirical Formula (Hill Notation):	CH₄O₃S
Linear Formula:	CH₃SO₃H
CAS Number:	75-75-2
Molecular Weight:	96.11
Beilstein/REAXYS Number:	1446024
EC Number:	200-898-6
MDL number:	MFCD00007518
PubChem Substance ID:	24870726
NACRES:	NA.21

Methanesulfonic acid may be used:

As a catalyst to produce linear alkylbenzenes by the addition reaction between long-chain olefins and benzene.
To prepare polyaniline (PANI)/graphene composites with enhanced thermal and electrical properties.
As a catalyst for the transformation of glucose/xylose mixtures to levulinic acid and furfural.

5 L in poly drum
2.5 L in glass bottle
5, 25, 100, 500 mL in glass bottle

Quality Level	200
vapor density	3.3 (vs air)
vapor pressure	1 mmHg ( 20 °C)
assay	99.0%
refractive index	n20/D 1.429 (lit.)
bp	167 °C/10 mmHg (lit.)
mp	17-19 °C (lit.)
solubility	water: soluble 1,000 g/L at 20 °C
density	1.481 g/mL at 25 °C (lit.)
SMILES string	O=S(O)(C)=O
InChI	1S/CH4O3S/c1-5(2,3)4/h1H3,(H,2,3,4)
InChI key	AFVFQIVMOAPDHO-UHFFFAOYSA-N

The product is a 70% aqueous solution of methanesulfonic acid (MSA). MSA is a strong organic acid. The chemical oxidation of dimetyl sulfide in the atmosphere leads to the formation of MSA in large quantities. MSA undergoes biodegradation by forming CO2 and sulphate. It is considered a green acid as it is less toxic and corrosive in comparison to mineral acids.1 The aqueous MSA solution has been considered a model electrolyte for electrochemical processes.

Pictograms	GHS05,GHS07
Signal Word	Danger
Hazard Statements	H290 - H302 + H312 - H314 - H335
Precautionary Statements	P234 - P261 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338
Target Organs	Respiratory system
Personal Protective Equipment	Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
RIDADR	UN 3265 8 / PGII
WGK Germany	WGK 1
Flash Point(F)	372.2 °F - closed cup
Flash Point(C)	189 °C - closed cup

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Methanesulfonic acid solution

Empirical Formula (Hill Notation):	CH₄O₃S
Linear Formula:	CH₃SO₃H
CAS Number:	75-75-2
Molecular Weight:	96.11
Beilstein/REAXYS Number:	1446024
MDL number:	MFCD00007518
PubChem Substance ID:	24870724
NACRES:	NA.21

Methanesulfonic acid solution may be used to study the corrosion behavior of stainless steel.

100, 500 mL in glass bottle
18 L in poly drum
1 L in glass bottle

Product of Arkema Inc.

Quality Level	200
vapor density	3.3 (vs air)
vapor pressure	<1 mmHg ( 20 °C)
concentration	70 wt. % in H₂O
impurities	1,000 ppm Sulfate (SO₄), 10 ppm Iron, 50 ppm Chloride (Cl)
refractive index	n20/D 1.416
density	1.319 g/mL at 25 °C
SMILES string	CS(O)(=O)=O
InChI	1S/CH4O3S/c1-5(2,3)4/h1H3,(H,2,3,4)
InChI key	AFVFQIVMOAPDHO-UHFFFAOYSA-N

100, 500 g in poly bottle

pictograms	GHS05,GHS07
signalword	Danger
hcodes	H290 - H302 - H314 - H335
pcodes	P234 - P261 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338
Target Organs	Respiratory system
Personal Protective Equipment	Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
RIDADR	UN 3265 8 / PGII
WGK Germany	WGK 1
Flash Point F	Not applicable
Flash Point C	Not applicable

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Molybdic acid

CAS Number:	7782-91-4
EC Number:	231-970-5
MDL number:	MFCD00036287
PubChem Substance ID:	329752396
NACRES:	NB.24

Consists largely of an ammonium molybdate

Quality Level	200
grade	ACS reagent
vapor density	6.2 (vs air)
assay	85.0% MoO₃ basis
form	powder
reaction suitability	reagent type: catalyst core: molybdenum
impurities	0.01% insol. dil. NH₄OH
solubility	water: insoluble
density	3.1 g/mL at 25 °C (lit.)
anion traces	AsO₄^3-, PO₄^3- and SiO₂: 0.001%, chloride (Cl^-): 0.002%, phosphate (PO₄^3-): 5 ppm, sulfate (SO₄^2-): 0.2%
cation traces	heavy metals: 0.003%
SMILES string	O[Mo](O)(=O)=O
InChI	1S/Mo.2H2O.2O/h;2*1H2;;/q+2;;;;/p-2
InChI key	VLAPMBHFAWRUQP-UHFFFAOYSA-L

Montmorillonite (Aluminum Pillared Clay) can be used to prepare poly(methyl methacrylate) (PMMA) based nanocomposite materials.

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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Montmorillonite
CAS Number: 1318-93-0

EC Number: 215-288-5

MDL number: MFCD00132796

NACRES: NA.22

Кат. номер

69866-100G

69866-1KG

General description
Montmorillonite is a layered clay mineral (2:1 phyllosilicate) that belongs to a class of the smectite group. It is a naturally abundant material and is chemically modified by the cation-exchange method for the preparation of polymer nanocomposites.
Application
Montmorillonite has been used as:
A nanofiller to improve the mechanical properties of poly(vinyl alcohol) (PVA) film for potential usage in packaging applications.
A catalyst in the conversion of polar and non-polar algae oil lipids to biodiesel.

It can also be used:
As a nanofiller in the preparation of biopolymer based nanocomposites.
In the preparation of Fe3+-montmorillonite, a solid acid catalyst for the synthesis of xanthenedione derivatives.

Packaging
100 g in poly bottle
1 kg in poly bottle
Other Notes
Solid Lewis acid catalyst
Параметры

Quality Level 100

form powder

surface area 250 m²/g

pH 3-4

Safety Information

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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Montmorillonite (Aluminum Pillared Clay)

CAS Number:	139264-88-3
MDL number:	MFCD00077645
PubChem Substance ID:	57652234
NACRES:	NA.22

25, 100 g in poly bottle

Acidic catalyst

Quality Level	100
loss	12-19% loss on ignition, 4-8% loss on drying
surface area	250 m²/g
pH	4-5
SMILES string	O=[Si]=O.O=[Al]O[Al]=O
InChI	1S/2Al.O2Si.3O/c;;1-3-2;;;
InChI key	HNPSIPDUKPIQMN-UHFFFAOYSA-N

Assay (GC, area%): 99.0 % (a/a)
Melting range (lower value): 52 °C
Melting range (upper value): 56 °C
Identity (IR): passes test

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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Montmorillonite K 10
CAS Number: 1318-93-0

EC Number: 215-288-5

MDL number: MFCD00132796

NACRES: NA.22

Кат. номер

281522-100G

281522-1KG

281522-5G

281522-25KG

Application
Used for:
Support for catalysts
Preparation of clay nanopaper composites of nacre-like structure

Catalyst for:
Conversion of triose sugars with alcohols to alkyl lactates
Deprotection of ketone dimethylhydrazones

Clay catalyst used in a microwave-assisted synthesis of pyrazoles from enaminones.
Packaging
100 g in poly bottle
1 kg in poly bottle
Параметры

Quality Level 200

surface area 220-270 m²/g

Safety Information

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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Myristic acid

Empirical Formula (Hill Notation):	C₁₄H₂₈O₂
Linear Formula:	CH₃(CH₂)₁₂COOH
CAS Number:	544-63-8
Molecular Weight:	228.37
MDL number:	MFCD00002744
EC Index Number:	208-875-2

Assay (argentometric): 99.0 %
Melting range (lower value): 190 °C
Melting range (upper value): 193 °C
Identity (IR): passes test

storage conditions	Store below +30°C.
Quality Level	200
vapor pressure	<0.01 hPa ( 20 °C)
assay	99.0% (GC)
potency	>10000 mg/kg LD₅₀, oral (Rat)
bp	326 °C/1013 hPa
mp	52-56 °C
transition temp	flash point >165 °C
solubility	1.07 mg/L
density	0.8622 g/cm³ at 54 °C
storage temp.	2-30°C
InChI	1S/C14H28O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14(15)16/h2-13H2,1H3,(H,15,16)
InChI key	TUNFSRHWOTWDNC-UHFFFAOYSA-N

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N,N-Dimethylglycine hydrochloride

Empirical Formula (Hill Notation):	C₄H₁₀ClNO₂
Linear Formula:	(CH₃)₂NCH₂COOH · HCl
CAS Number:	2491-06-7
Molecular Weight:	139.58
MDL number:	MFCD00012610
EC Index Number:	219-648-2

Assay (HClO): 98.0 %
Identity (IR): passes test

storage conditions	Store below +30°C.
Quality Level	200
mp	189-194 °C (External MSDS)
storage temp.	2-30°C
InChI	1S/C4H9NO2.ClH/c1-5(2)3-4(6)7;/h3H2,1-2H3,(H,6,7);1H
InChI key	FKASAVXZZLJTNX-UHFFFAOYSA-N

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N-(2-Acetamido)-iminodiacetic acid

Empirical Formula (Hill Notation):	C₆H₁₀N₂O₅
CAS Number:	26239-55-4
Molecular Weight:	190.15
MDL number:	MFCD00008031
EC Index Number:	247-530-0

Assay (HClO): 95.0 %
Water (K. F.): 5.0 %
Identity (IR): passes test

storage conditions	Store below +30°C.
Quality Level	200
solubility	2.64 g/L
density	1.5257 g/cm³ at 20.2 °C
storage temp.	2-30°C
InChI	1S/C6H10N2O5/c7-4(9)1-8(2-5(10)11)3-6(12)13/h1-3H2,(H2,7,9)(H,10,11)(H,12,13)/p-1
InChI key	QZTKDVCDBIDYMD-UHFFFAOYSA-M

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N-Lauryl sarcosine sodium salt

Empirical Formula (Hill Notation):	C₁₅H₂₈NNaO₃
Linear Formula:	CH₃-(CH₂)₁₀-CO-N(CH₃)-CH₂-COONa
CAS Number:	137-16-6
Molecular Weight:	293.38
MDL number:	MFCD00042728
EC Index Number:	205-281-5

Assay (acidimetric): 99.0 %
Melting range (lower value): 234 °C
Melting range (upper value): 238 °C
Identity (IR): passes test

storage conditions	Store below +30°C.
vapor pressure	0.02 hPa ( 20 °C)
Quality Level	200
potency	2888 mg/kg LD₅₀, oral (Rat)
pH	8 (20 °C, 30 g/L in H₂O)
mp	146 °C
transition temp	flash point 267 °C
density	1.14 g/cm³ at 20 °C
bulk density	400 kg/m³
storage temp.	2-30°C
InChI	1S/C15H29NO3.Na/c1-3-4-5-6-7-8-9-10-11-12-14(17)16(2)13-15(18)19;/h3-13H2,1-2H3,(H,18,19);/q;+1/p-1
InChI key	KSAVQLQVUXSOCR-UHFFFAOYSA-M

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N-Phenylanthranilic acid

Empirical Formula (Hill Notation):	C₁₃H₁₁NO₂
Linear Formula:	2-(C₆H₅NH)C₆H₄COOH
CAS Number:	91-40-7
Molecular Weight:	213.23
MDL number:	MFCD00002421
EC Index Number:	202-066-8

storage conditions	Store below +30°C.
Quality Level	200
mp	182-185 °C
bulk density	200 kg/m³
storage temp.	2-30°C
InChI	1S/C13H11NO2/c15-13(16)11-8-4-5-9-12(11)14-10-6-2-1-3-7-10/h1-9,14H,(H,15,16)
InChI key	ZWJINEZUASEZBH-UHFFFAOYSA-N

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Nicotinic acid

Empirical Formula (Hill Notation):	C₆H₅NO₂
Linear Formula:	3-(COOH)-C₅H₄N
CAS Number:	59-67-6
Molecular Weight:	123.11
MDL number:	MFCD00006391
EC Index Number:	200-441-0

Nitric acid (HNO3) is a highly corrosive mineral acid. It is usually utilized for abstracting transition metal catalyst from single-walled carbon nanotubes (SWNTs) in order to purify them. The effect of nitric acid on the oxidation of multiwalled carbon nanotubes (MWCNTs) has been investigated by sample weight, Raman spectrum, solubility, morphology and alignment examinations.

storage conditions	Store below +30°C.
Quality Level	200
assay	99% (acidimetric)
form	granular
autoignition temp.	>365 °C (Dust)
potency	>5000 mg/kg LD₅₀, oral (Rat), >2000 mg/kg LD₅₀, skin (Rat)
pH	2.7 (20 °C, 18 g/L in H₂O)
mp	236.6 °C
transition temp	flash point 193 °C
density	1.47 g/cm³ at 20 °C
bulk density	330 kg/m³
storage temp.	2-30°C
InChI	1S/C6H5NO2/c8-6(9)5-2-1-3-7-4-5/h1-4H,(H,8,9)
InChI key	PVNIIMVLHYAWGP-UHFFFAOYSA-N

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Nitric acid

Empirical Formula (Hill Notation):	HNO₃
CAS Number:	7697-37-2
Molecular Weight:	63.01
EC Number:	231-714-2
MDL number:	MFCD00011349
eCl@ss:	38060304
PubChem Substance ID:	329756406
NACRES:	NA.21

Nitric acid was used to increase the number of acid sites by altering the surface of activated carbon.
It may be used:

In combination with acetic anhydride and zeolite catalysts for the preparation of p-nitrotoluene with high regioselectivity.
In the pretreatment of rice straw for enhanced production of xylose.
To minimize the extent of cation ordering in LiNi0.5Mn1.5O4, a transition metal-substituted spinel material, by surface treatment.

500, 6×500 mL in PVC-coated bottle
2.5, 6×2.5 L in PVC-coated bottle
100 mL in glass bottle
2.2 L in poly bottle

SKU-Pack sizes with -P are packaged in poly bottles

Quality Level	200
grade	ACS reagent
vapor pressure	8 mmHg ( 20 °C)
assay	68.0-70.0% (ACS specification), 70%
form	liquid
ign. residue	5 ppm
color	APHA: 10
pH	< 1.0
bp	120.5 °C (lit.)
density	1.413 g/mL at 20 °C (lit.)
anion traces	chloride (Cl^-): 0.5 ppm, sulfate (SO₄^2-): 1 ppm
cation traces	As: 0.01 ppm, Fe: 0.2 ppm, heavy metals (as Pb): 0.2 ppm
SMILES string	O[N+]([O-])=O
InChI	1S/HNO3/c2-1(3)4/h(H,2,3,4)
InChI key	GRYLNZFGIOXLOG-UHFFFAOYSA-N

An excellent chelating agent.

Pictograms	GHS03,GHS05,GHS06
Signal Word	Danger
Hazard Statements	H272 - H290 - H314 - H331
Precautionary Statements	P210 - P220 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
Supp Hazards	EUH071
RIDADR	UN2031 - class 8 (5.1) - PG 2 - IATA PAX forbidden - Nitric acid >=65% - <= 70%
WGK Germany	WGK 3
Flash Point(F)	Not applicable
Flash Point(C)	Not applicable

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Nitrilotriacetic acid

Empirical Formula (Hill Notation):	C₆H₉NO₆
Linear Formula:	N(CH₂COOH)₃
CAS Number:	139-13-9
Molecular Weight:	191.14
Beilstein/REAXYS Number:	1710776
EC Number:	205-355-7
MDL number:	MFCD00004287
PubChem Substance ID:	57652425
NACRES:	NA.21

Quality Level	200
grade	ACS reagent
assay	99.0% (T), 99.0%
ign. residue	0.1% (as SO₄)
loss	0.1% loss on drying
mp	245 °C (dec.) (lit.)
anion traces	chloride (Cl^-): 100 mg/kg
cation traces	Ca: 10 mg/kg, Cd: 5 mg/kg, Co: 5 mg/kg, Cr: 5 mg/kg, Cu: 5 mg/kg, Fe: 20 mg/kg, K: 50 mg/kg, Mg: 5 mg/kg, Mn: 5 mg/kg, Na: 500 mg/kg, Ni: 5 mg/kg, Pb: 5 mg/kg, Zn: 5 mg/kg
SMILES string	OC(=O)CN(CC(O)=O)CC(O)=O
InChI	1S/C6H9NO6/c8-4(9)1-7(2-5(10)11)3-6(12)13/h1-3H2,(H,8,9)(H,10,11)(H,12,13)
InChI key	MGFYIUFZLHCRTH-UHFFFAOYSA-N

pictograms	GHS07,GHS08
signalword	Warning
hcodes	H319 - H351
pcodes	P201 - P305 + P351 + P338 - P308 + P313
Personal Protective Equipment	Eyeshields, Gloves, type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges
RIDADR	NONH for all modes of transport
WGK Germany	WGK 2
Flash Point F	212.0 °F - closed cup
Flash Point C	100 °C - closed cup

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Nitrosylsulfuric acid solution 517070-250ML

Empirical Formula (Hill Notation):	HNO₅S
Linear Formula:	HO₃SONO
CAS Number:	7782-78-7
Molecular Weight:	127.08
MDL number:	MFCD00011495
PubChem Substance ID:	24873942
NACRES:	NA.22

Quality Level	200
concentration	40 wt. % in sulfuric acid
density	1.865 g/mL at 25 °C
SMILES string	OS(=O)(=O)ON=O
InChI	1S/HNO5S/c2-1-6-7(3,4)5/h(H,3,4,5)
InChI key	VQTGUFBGYOIUFS-UHFFFAOYSA-N

Assay (GC, area%): 90.0 % (a/a)
Density (d 20°C/ 4°C): 0.904 - 0.907
Identity (IR): passes test
Due to its specific melting range the product may be solid, liquid, a solidified melt or a supercooled melt.

pictograms	GHS03,GHS05,GHS06
signalword	Danger
hcodes	H272 - H290 - H301 + H311 - H314 - H332
pcodes	P210 - P280 - P301 + P310 + P330 - P303 + P361 + P353 - P304 + P340 + P312 - P305 + P351 + P338 + P310
Personal Protective Equipment	Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
RIDADR	UN 3264 8 / PGII
WGK Germany	WGK 3
Flash Point F	Not applicable
Flash Point C	Not applicable

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Nonanoic acid

Empirical Formula (Hill Notation):	C₉H₁₈O₂
Linear Formula:	CH₃(CH₂)₇COOH
CAS Number:	112-05-0
Molecular Weight:	158.24
MDL number:	MFCD00004433
EC Index Number:	203-931-2

Assay (acidimetric): 98
Identity (IR-spectrum): passes test
Melting range: 172 - 176
o- Iodobenzoic acid (HPLC, contra external standard): 0.1 %

storage conditions	Store below +30°C.
Quality Level	200
vapor pressure	0.04 hPa ( 20 °C)
assay	90.0% (GC)
autoignition temp.	405 °C
expl. lim.	0.8-9 % (v/v)
pH	4.4 (25 °C, 0.1 g/L in H₂O)
kinematic viscosity	9.0 cSt(20 °C)
mp	13 °C
transition temp	flash point 137 °C
solubility	0.3 g/L
density	0.91 g/cm³ at 20 °C
storage temp.	2-30°C
InChI	1S/C9H18O2/c1-2-3-4-5-6-7-8-9(10)11/h2-8H2,1H3,(H,10,11)
InChI key	FBUKVWPVBMHYJY-UHFFFAOYSA-N

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o-Iodohippuric acid

Empirical Formula (Hill Notation):	C₉H₈INO₃
Linear Formula:	2-(I)C₆H₄NHCH₂COOH
CAS Number:	147-58-0
Molecular Weight:	305.07
MDL number:	MFCD00002694
EC Index Number:	205-693-5

Assay (GC, area%): 99.0 % (a/a)
Density (d 20°C/ 4°C): 0.908 - 0.912
Identity (IR): passes test
Due to its specific melting range the product may be solid, liquid, a solidified melt or a supercooled melt.

storage conditions	Store below +30°C.
Quality Level	200
assay	≥98% (acidimetric)
mp	170-172 °C (External MSDS)
storage temp.	2-30°C
InChI	1S/C9H8INO3/c10-7-4-2-1-3-6(7)9(14)11-5-8(12)13/h1-4H,5H2,(H,11,14)(H,12,13)
InChI key	CORFWQGVBFFZHF-UHFFFAOYSA-N

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Octanoic acid

Empirical Formula (Hill Notation):	C₈H₁₆O₂
Linear Formula:	CH₃(CH₂)₆COOH
CAS Number:	124-07-2
Molecular Weight:	144.21
MDL number:	MFCD00004429
EC Index Number:	204-677-5

Кат. номер
8001921000
8001920100
8001929999
8001922500
8.00192.2500
8.00192.1000
8.00192.0100

Analysis Note

storage conditions	Store below +30°C.
Quality Level	200
vapor pressure	0.05 hPa ( 20 °C)
assay	99.0% (GC)
autoignition temp.	>300 °C
potency	>2000 mg/kg LD₅₀, oral (Rat), >5000 mg/kg LD₅₀, skin (Rabbit)
expl. lim.	1 % (v/v)
pH	4 (20 °C, 0.2 g/L in H₂O)
bp	237 °C/1013 hPa
mp	16 °C
transition temp	flash point 130 °C
solubility	0.68 g/L
density	0.91 g/cm³ at 20 °C
storage temp.	2-30°C
InChI	1S/C8H16O2/c1-2-3-4-5-6-7-8(9)10/h2-7H2,1H3,(H,9,10)
InChI key	WWZKQHOCKIZLMA-UHFFFAOYSA-N

Oxalic acid is a dicarboxylic acid. It reacts with aqueous iron(II) salt solutions to afford iron(III) oxalate.

pictograms	GHS05
signalword	Danger
hcodes	H314
pcodes	P280 - P301 + P330 + P331 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P363
WGK Germany	WGK 1
Flash Point F	230.0 °F - closed cup
Flash Point C	> 110 °C - closed cup

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Oxalic acid

Empirical Formula (Hill Notation):	C₂H₂O₄
Linear Formula:	HO₂CCO₂H
CAS Number:	144-62-7
Molecular Weight:	90.03
Beilstein/REAXYS Number:	385686
EC Number:	205-634-3
MDL number:	MFCD00002573
PubChem Substance ID:	57652581
NACRES:	NA.21

Oxalic acid may be used in the preparation of the following:

ammonium oxalate
calcium oxalate
chlorine dioxide (ClO2)
potassium hydrogenoxalate

Quality Level	200
grade	anhydrous, puriss. p.a.
vapor density	4.4 (vs air)
vapor pressure	<0.01 mmHg ( 20 °C)
assay	99.0% (RT)
impurities	0.001% total nitrogen (N), 1% water
ign. residue	0.01% (as SO₄)
mp	189.5 °C (dec.) (lit.)
anion traces	chloride (Cl^-): 50 mg/kg, sulfate (SO₄^2-): 50 mg/kg
cation traces	Ca: 10 mg/kg, Cd: 5 mg/kg, Co: 5 mg/kg, Cr: 5 mg/kg, Cu: 5 mg/kg, Fe: 5 mg/kg, K: 50 mg/kg, Mg: 5 mg/kg, Mn: 5 mg/kg, Na: 50 mg/kg, Ni: 5 mg/kg, Pb: 5 mg/kg, Zn: 5 mg/kg
SMILES string	OC(=O)C(O)=O
InChI	1S/C2H2O4/c3-1(4)2(5)6/h(H,3,4)(H,5,6)
InChI key	MUBZPKHOEPUJKR-UHFFFAOYSA-N
Gene Information	human ... SRC(6714)

Oxalic acid dihydrate is a promising candidate as a phase change material (PCM) for use in thermal energy storage (TES) technology due to its high heat of fusion and energy storage density/price ratio in comparison to other salt hydrates PCMs.

pictograms	GHS05,GHS07
signalword	Danger
hcodes	H302 + H312 - H318
pcodes	P264 - P270 - P280 - P301 + P312 - P302 + P352 + P312 - P305 + P351 + P338
Personal Protective Equipment	dust mask type N95 (US), Eyeshields, Gloves
RIDADR	NONH for all modes of transport
WGK Germany	WGK 1

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Oxalic acid dihydrate

Empirical Formula (Hill Notation):	C₂H₂O₄ · 2H₂O
Linear Formula:	HO₂CCO₂H · 2H₂O
CAS Number:	6153-56-6
Molecular Weight:	126.07
Beilstein/REAXYS Number:	3679436
EC Number:	205-634-3
MDL number:	MFCD00149102
eCl@ss:	39021701
PubChem Substance ID:	24854873
NACRES:	NA.21

Oxalic acid dihydrate may be used:

As a catalyst in the preparation of tetrahydroquinoline derivatives via imino Diels-Alder reaction.
As a homogeneous catalyst in the preparation of highly functionalized piperidines via multi-component reaction.
As an oxidant for the formation of triazolinediones from corresponding urazoles and bisurazoles via oxidation.
In the transformation of thiols to nitrosothiols by reacting with sodium nitrite.

2.5 kg in poly bottle
100, 500 g in poly bottle

Quality Level	200
grade	ACS reagent
vapor density	4.4 (vs air)
vapor pressure	<0.01 mmHg ( 20 °C)
assay	99%, 99.5-102.5% (ACS specification)
impurities	H₂SO₄, passes test (darkened), 0.001% N compounds, 0.005% insolubles
ign. residue	0.01%
mp	104-106 °C (lit.)
anion traces	chloride (Cl^-): 0.002%, sulfate (SO₄^2-): 0.005%
cation traces	Ca: 0.001%, Fe: 2 ppm, heavy metals: 5 ppm (by ICP-OES)
SMILES string	[H]O[H].[H]O[H].OC(=O)C(O)=O
InChI	1S/C2H2O4.2H2O/c3-1(4)2(5)6;;/h(H,3,4)(H,5,6);2*1H2
InChI key	GEVPUGOOGXGPIO-UHFFFAOYSA-N

p-Toluenesulfonic acid monohydrate, an oxonium salt, is an inexpensive and easy to handle organic catalyst used in organic synthesis. The study of its crystalline structure shows that it is monoclinic with P21/c space group. Its solubility in aqueous sulfuric acid solutions has been studied.

pictograms	GHS05,GHS07
signalword	Danger
hcodes	H302 + H312 - H318
pcodes	P264 - P270 - P280 - P301 + P312 - P302 + P352 + P312 - P305 + P351 + P338
Personal Protective Equipment	dust mask type N95 (US), Eyeshields, Gloves
RIDADR	NONH for all modes of transport
WGK Germany	WGK 1

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p-Toluenesulfonic acid monohydrate

Empirical Formula (Hill Notation):	C₇H₈O₃S · H₂O
Linear Formula:	CH₃C₆H₄SO₃H · H₂O
CAS Number:	6192-52-5
Molecular Weight:	190.22
Beilstein/REAXYS Number:	3568023
EC Number:	203-180-0
MDL number:	MFCD00142137
PubChem Substance ID:	24865132
NACRES:	NA.21

p-Toluenesulfonic acid monohydrate (p-TsOH·H2O) may be used as a catalyst in the synthesis of the following:

Unsymmetrical benzils.
Highly substituted piperidines.
1,3,5-Trisubstituted benzenes by trimerization of alkynes.
Triazoloquinazolinone and benzimidazoquinazolinone derivatives.
1,3,5-Trisubstituted pyrazoles derivatives.
Selenated ketene dithioacetals.

5 g in glass bottle
100, 500 g in poly bottle

Quality Level	200
grade	ACS reagent
vapor density	5.9 (vs air)
assay	98.5%
clarity of soln	passes test
impurities	9.5-11.5% water
ign. residue	0.1%
mp	103-106 °C (lit.)
solubility	H₂O: 10g + 50 mL, clear, colorless
anion traces	sulfate (SO₄^2-): 0.3%
cation traces	Fe: 0.01%, Na: 0.002%, heavy metals (as Pb): 0.001%
SMILES string	[H]O[H].Cc1ccc(cc1)S(O)(=O)=O
InChI	1S/C7H8O3S.H2O/c1-6-2-4-7(5-3-6)11(8,9)10;/h2-5H,1H3,(H,8,9,10);1H2
InChI key	KJIFKLIQANRMOU-UHFFFAOYSA-N

25, 100 g in glass bottle

Pictograms	GHS05
Signal Word	Danger
Hazard Statements	H290 - H314 - H412
Precautionary Statements	P234 - P260 - P273 - P280 - P303 + P361 + P353 - P305 + P351 + P338
Personal Protective Equipment	dust mask type N95 (US), Eyeshields, Faceshields, Gloves
RIDADR	UN 2585PSN2 8 / PGIII
WGK Germany	WGK 1

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p-Toluenesulfonic acid, polymer-bound

MDL number:	MFCD02683442
PubChem Substance ID:	24877878

Scavenges nitrogen nucleophiles, activated ester electrophiles, and bases such as EDC.

Quality Level	100
reaction suitability	reaction type: solution phase peptide synthesis
extent of labeling	2.0-3.0 mmol/g loading
particle size	30-60 mesh
SMILES string	C=Cc1ccccc1.OS(=O)(=O)c2ccccc2.C=Cc3ccc(C=C)cc3

Assay (GC, area%): 98 %
Melting range
- lower value:
62 °C
- upper value: 64 °C
Identity (IR): passes test

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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Palmitic acid

Empirical Formula (Hill Notation):	C₁₆H₃₂O₂
Linear Formula:	CH₃(CH₂)₁₄COOH
CAS Number:	57-10-3
Molecular Weight:	256.42
MDL number:	MFCD00002747
EC Index Number:	200-312-9

Assay (GC, area%): 99.0 % (a/a)
Melting range (lower value): 51 °C
Melting range (upper value): 53 °C
Identity (IR): passes test

storage conditions	Store below +30°C.
Quality Level	200
assay	98% (GC)
potency	>10000 mg/kg LD₅₀, oral (Rat)
bp	271.4 °C/133 hPa
mp	61-63 °C
transition temp	flash point 206 °C
density	0.852 g/cm³ at 20 °C
bulk density	415 kg/m³
storage temp.	2-30°C
InChI	1S/C16H32O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16(17)18/h2-15H2,1H3,(H,17,18)
InChI key	IPCSVZSSVZVIGE-UHFFFAOYSA-N

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Pentadecanoic acid

Empirical Formula (Hill Notation):	C₁₅H₃₀O₂
Linear Formula:	CH₃(CH₂)₁₃COOH
CAS Number:	1002-84-2
Molecular Weight:	242.40
MDL number:	MFCD00002745
EC Index Number:	213-693-1

Assay (GC, area%): 98.0 % (a/a)
Density (d 20°C/ 4°C): 0.938 - 0.940
Identity (IR): passes test

storage conditions	Store below +30°C.
Quality Level	200
assay	≥99.0% (GC)
mp	51-53 °C
transition temp	flash point 113 °C
solubility	insoluble 0.012 g/L
storage temp.	2-30°C
InChI	1S/C15H30O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15(16)17/h2-14H2,1H3,(H,16,17)
InChI key	WQEPLUUGTLDZJY-UHFFFAOYSA-N

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Pentanoic acid

Empirical Formula (Hill Notation):	C₅H₁₀O₂
Linear Formula:	CH₃(CH₂)₃COOH
CAS Number:	109-52-4
Molecular Weight:	102.13
MDL number:	MFCD00004413
EC Index Number:	203-677-2

Кат. номер
8008210500
8008211000
8008210100
8008219999
8.00821.1000
8.00821.0500
8.00821.0100

Analysis Note

Perchloric acid (HClO4), an oxygen acid of chlorine, is strongly acidic in nature. Hydrates of perchloric acid are obtained on its dissolution in water.

storage conditions	Store below +30°C.
Quality Level	200
vapor pressure	0.3 hPa ( 20 °C)
assay	98.0% (GC)
autoignition temp.	360 °C
potency	>2000 mg/kg LD₅₀, skin (Rabbit)
expl. lim.	1.8-7.3 % (v/v)
pH	2.7 (20 °C, 40 g/L in H₂O)
bp	186 °C/1013 hPa
mp	-32 °C
transition temp	flash point 86 °C
solubility	40 g/L
density	0.938 g/cm³ at 20 °C
storage temp.	2-30°C
InChI	1S/C5H10O2/c1-2-3-4-5(6)7/h2-4H2,1H3,(H,6,7)
InChI key	NQPDZGIKBAWPEJ-UHFFFAOYSA-N

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Perchloric acid

Empirical Formula (Hill Notation):	HClO₄
Linear Formula:	HClO₄
CAS Number:	7601-90-3
Molecular Weight:	100.46
MDL number:	MFCD00011325
PubChem Substance ID:	329752489

Perchloric acid has been used to deactivate chloramine-T during the spectrophotometric determination of collagen content of the rat tibialis anterior (TA) tendons and tendon constructs.

It also may be used in the following studies:

Determination of reduced glutathione (GSH) and oxidized glutathione (GSSG) content in liver tissues by high performance liquid chromatography (HPLC).
As an oxidizing agent in the estimation of sulfur (S) in plant samples.
As a solvent for the dissolution of plutonium.

100, 4×100, 500 mL in glass bottle
1, 2.5, 4×2.5 L in glass bottle
poly-coated bottles available: product numbers 244252-2.5L-CB

Quality Level	200
grade	ACS reagent
vapor pressure	6.8 mmHg ( 25 °C)
assay	69.0-72.0% (ACS specification), 70%
form	liquid
reaction suitability	reagent type: oxidant
application(s)	toxicology assay: suitable
impurities	0.001% N compounds, 5 ppm Silicate and phosphate (as SIO₂)
ign. residue	0.003%
color	APHA: 10
density	1.664 g/mL at 25 °C
anion traces	chloride (Cl^-): 0.001%, sulfate (SO₄^2-): 0.001%
cation traces	Fe: 1 ppm, heavy metals: 1 ppm (by ICP)
SMILES string	OCl(=O)(=O)=O
InChI	1S/ClHO4/c2-1(3,4)5/h(H,2,3,4,5)
InChI key	VLTRZXGMWDSKGL-UHFFFAOYSA-N

Perchloric acid (HClO4), an oxygen acid of chlorine, is a colorless liquid. It is strongly acidic in nature. Hydrates of perchloric acid are obtained on its dissolution in water.

Pictograms	GHS03,GHS05,GHS07,GHS08
Signal Word	Danger
Hazard Statements	H271 - H290 - H302 - H314 - H373
Precautionary Statements	P210 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338 - P314
Target Organs	Thyroid
RIDADR	UN 1873 8(5.1) / PGI
WGK Germany	WGK 1
Flash Point(F)	No data available
Flash Point(C)	No data available

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Perchloric acid 77234-1L

Empirical Formula (Hill Notation):	HClO₄
Linear Formula:	HClO₄
CAS Number:	7601-90-3
Molecular Weight:	100.46
MDL number:	MFCD00011325
PubChem Substance ID:	329767556
NACRES:	NA.21

General description

Reagent for the decomposition of metals and organic compounds (danger of explosions)

Quality Level	200
grade	ACS reagent, puriss. p.a.
assay	60% (T)
form	liquid
quality	packed in coated, shock- and leak-protected glass bottle
impurities	0.00005% free chlorine (Cl), 0.001% total nitrogen (N)
ign. residue	0.003% (as SO₄)
density	1.670 g/cm³
anion traces	chlorate (ClO₃^-): 10 mg/kg, chloride (Cl^-): 3 mg/kg, phosphate, silicate (as SiO₂): 5 mg/kg, sulfate (SO₄^2-): 10 mg/kg
cation traces	Ag: 0.1 mg/kg, Al: 0.05 mg/kg, As: 0.05 mg/kg, Ba: 0.02 mg/kg, Bi: 0.1 mg/kg, Ca: 0.5 mg/kg, Cd: 0.05 mg/kg, Co: 0.05 mg/kg, Cu: 0.1 mg/kg, Fe: 1 mg/kg, K: 0.1 mg/kg, Li: 0.02 mg/kg, Mg: 0.5 mg/kg, Mn: 0.02 mg/kg, Mo: 0.05 mg/kg, Ni: 0.1 mg/kg, Pb: 0.05 mg/kg, Sr: 0.02 mg/kg, Tl: 0.05 mg/kg, Zn: 0.1 mg/kg
SMILES string	OCl(=O)(=O)=O
InChI	1S/ClHO4/c2-1(3,4)5/h(H,2,3,4,5)
InChI key	VLTRZXGMWDSKGL-UHFFFAOYSA-N

Assay (HPLC, area%): 99.0 % (a/a)
Melting range (lower value): 74 °C
Melting range (upper value): 77 °C
Identity (IR): passes test

pictograms	GHS03,GHS05,GHS07,GHS08
signalword	Danger
hcodes	H271 - H290 - H302 - H314 - H373
pcodes	P210 - P280 - P301 + P330 + P331 - P303 + P361 + P353 - P305 + P351 + P338 + P310 - P314
Target Organs	Thyroid
RIDADR	UN 1873 8(5.1) / PGI
WGK Germany	WGK 1

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Phenylacetic acid

Empirical Formula (Hill Notation):	C₈H₈O₂
CAS Number:	103-82-2
Molecular Weight:	136.15
MDL number:	MFCD00004313
EC Index Number:	203-148-6

We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for energy efficiency. Find details here.
Phosphoric acid (H3PO4), also known as orthophosphoric acid, is an inorganic acid. It has a wide range of industrial applications such as an intermediate to produce animal feedstock, to prepare stock solutions for workup procedures and to treat the metal surfaces for better adhesion of paint and resin coatings. In the food industry it is used as a preservative, an acidulant and flavor enhancer.

storage conditions	Store below +30°C.
Quality Level	200
vapor pressure	1.33 hPa ( 97 °C)
assay	99.0% (HPLC)
potency	>5000 mg/kg LD₅₀, oral (Rat), >5000 mg/kg LD₅₀, skin (Rabbit)
bp	265 °C/1013 hPa
mp	74-77 °C
transition temp	flash point 132 °C
solubility	1.58 g/L
density	1.091 g/cm³ at 97 °C
storage temp.	2-30°C
InChI	1S/C8H8O2/c9-8(10)6-7-4-2-1-3-5-7/h1-5H,6H2,(H,9,10)
InChI key	WLJVXDMOQOGPHL-UHFFFAOYSA-N

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Phosphoric acid

Empirical Formula (Hill Notation):	H₃O₄P
Linear Formula:	H₃PO₄
CAS Number:	7664-38-2
Molecular Weight:	98.00
Beilstein/REAXYS Number:	1921286
EC Number:	231-633-2
MDL number:	MFCD00011340
PubChem Substance ID:	329756407

Phosphoric acid may be employed as standard for the determination of phosphorus-31 nuclear magnetic resonance (31P NMR) chemical shifts of the common phospholipids. It may be employed in the following studies:

As external standard for the analysis of lipid composition of human white matter by 31P NMR spectroscopy.
As external standard during the acid-labile phosphorylation of histone H4 by 31P NMR spectroscopy.
As reference standard to investigate the surface species present on silica/alumina-supported sodium phosphates by pre- and postreaction MAS31P-NMR and FTIR spectroscopies.
As catalyst in the vapor-phase Fries rearrangement of phenylacetate at 623K over a series of surface modified and unmodified ZSM-5.
As an eco-friendly reagent for the removal of protecting groups like tert-butyl carbamates, tert-butyl esters and tert-butyl ethers.

500, 6×500 mL in PVC-coated bottle
2.5, 6×2.5 L in PVC-coated bottle

Concentrated phosphoric acid is approx. 85% H3PO4 (aqueous).

Quality Level	200
grade	ACS reagent
vapor density	3.4 (vs air)
vapor pressure	2.2 mmHg ( 20 °C), 5 mmHg ( 25 °C)
assay	85% (with NaOH, titration)
form	liquid
greener alternative product characteristics	Design for Energy Efficiency Learn more about the Principles of Green Chemistry.
concentration	85 wt. % in H₂O
application(s)	NMR: suitable
impurities	Reducing substances, passes test, 0.001% volatile acids (as CH₃COOH)
color	APHA: 10
bp	158 °C (lit.)
mp	~40 °C (lit.)
density	1.685 g/mL at 25 °C (lit.)
anion traces	chloride (Cl^-): 3 ppm, nitrate (NO₃^-): 5 ppm, sulfate (SO₄^2-): 0.003%
cation traces	As: 1 ppm, Ca: 0.002%, Fe: 0.003%, K: 0.005%, Mg: 0.02%, Mn: 0.5 ppm, Na: 0.025%, Sb: 0.002%, heavy metals: 0.001% (by ICP)
SMILES string	OP(O)(O)=O
InChI	1S/H3O4P/c1-5(2,3)4/h(H3,1,2,3,4)
InChI key	NBIIXXVUZAFLBC-UHFFFAOYSA-N
Gene Information	human ... SRC(6714)

Phosphorous acid (H3PO3, orthophosphorous acid) may be used as one of the reaction components for the synthesis of the following:

pictograms	GHS05,GHS07
signalword	Danger
hcodes	H290 - H302 - H314
pcodes	P234 - P270 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338
RIDADR	UN 1805 8 / PGIII
WGK Germany	WGK 1
Flash Point F	Not applicable
Flash Point C	Not applicable

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Phosphorous acid

Empirical Formula (Hill Notation):	H₃O₃P
CAS Number:	13598-36-2
Molecular Weight:	82.00
EC Number:	237-066-7
MDL number:	MFCD00137258
PubChem Substance ID:	329752161
NACRES:	NA.21

-aminomethylphosphonic acids via Mannich-Type Multicomponent Reaction
1-aminoalkanephosphonic acids via amidoalkylation followed by hydrolysis
N-protected -aminophosphonic acids (phospho-isosteres of natural amino acids) via amidoalkylation reaction

2, 4×2 kg in poly bottle
100, 500 g in poly bottle

Quality Level	100
assay	99%
form	crystals or chunks, flakes
solubility	water: soluble
density	1.651 g/mL at 25 °C (lit.)
SMILES string	[H]P(O)(O)=O
InChI	1S/H3O3P/c1-4(2)3/h4H,(H2,1,2,3)
InChI key	ABLZXFCXXLZCGV-UHFFFAOYSA-N

pictograms	GHS05,GHS07
signalword	Danger
hcodes	H290 - H302 - H314
pcodes	P260 - P280 - P301 + P312 + P330 - P301 + P330 + P331 - P303 + P361 + P353 - P305 + P351 + P338 + P310
RIDADR	UN 2834 8 / PGIII
WGK Germany	WGK 1
Flash Point F	Not applicable
Flash Point C	Not applicable

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Phosphorous acid solution 4115-1L

Empirical Formula (Hill Notation):	H₃O₃P
Linear Formula:	H₂PHO₃
CAS Number:	13598-36-2
Molecular Weight:	82.00
MDL number:	MFCD00137258
PubChem Substance ID:	329747883
NACRES:	NA.21

Quality Level	200
assay	50%
form	liquid
impurities	0.001% heavy metals (as Pb)
density	1.651 g/cm³
anion traces	chloride (Cl^-): 10 mg/kg
cation traces	Fe: 10 mg/kg
SMILES string	O[PH](O)=O
InChI	1S/H3O3P/c1-4(2)3/h4H,(H2,1,2,3)
InChI key	ABLZXFCXXLZCGV-UHFFFAOYSA-N

Phosphotungstic acid hydrate is a heteropolyacid.

pictograms	GHS05,GHS07
signalword	Danger
hcodes	H290 - H302 - H314
pcodes	P280 - P301 + P312 + P330 - P303 + P361 + P353 - P305 + P351 + P338 + P310
RIDADR	UN 3264 8 / PGIII
WGK Germany	WGK 1
Flash Point F	Not applicable
Flash Point C	Not applicable

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Phosphotungstic acid hydrate

Empirical Formula (Hill Notation):	H₃O₄₀PW₁₂ · xH₂O
Linear Formula:	H₃[P(W₃O₁₀)₄] · xH₂O
CAS Number:	12501-23-4
Molecular Weight:	2880.05 (anhydrous basis)
MDL number:	MFCD00149915
PubChem Substance ID:	24898480
NACRES:	NA.21

Phosphotungstic acid hydrate may be used as a staining agent for the transmission electron microscope (TEM) imaging of cetyltrimethylammonium bromide (CTAB) coated gold nanorods.
It may be used in the preparation of:

Phosphotungstic acid doped ormosil hybrid networks.
Niobia supported phosphotungstic acid (PTA) catalysts.
Titanium dioxide (TiO2) nanoparticles /phosphotungstic acid (HPW) films.

10, 25, 100, 250, 500 g in glass bottle

Quality Level	200
grade	reagent grade
mp	~95 °C (lit.)
SMILES string	O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.OP(O)(O)=O
InChI	1S/H3O4P.H2O.36O.12W/c1-5(2,3)4;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;/h(H3,1,2,3,4);1H2;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
InChI key	AVFBYUADVDVJQL-UHFFFAOYSA-N

Phthalic acid (PA, PTA), also called as 1,2-benzenedicarboxylic acid is an aromatic carboxylic acid. It is the ortho form of the three phthalic acid isomers, the other two being isophthalic acid (meta form) and terephthalic acid (para form). PA is the starting material in the synthesis of plasticizers. A study on toxicity reveals that PA shows in vitro and in vivo toxicity. Its mineralization by photocatalysis using TiO2/UV system has been studied. It also is used as a potential tyrosinase inhibitor.

pictograms	GHS05,GHS07,GHS09
signalword	Danger
hcodes	H302 - H314 - H411
pcodes	P260 - P273 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338
Personal Protective Equipment	Eyeshields, Faceshields, Gloves, type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges
RIDADR	UN 3260 8 / PGII
WGK Germany	WGK 2
Flash Point F	Not applicable
Flash Point C	Not applicable

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Phthalic acid

Empirical Formula (Hill Notation):	C₈H₆O₄
Linear Formula:	C₆H₄-1,2-(CO₂H)₂
CAS Number:	88-99-3
Molecular Weight:	166.13
Beilstein/REAXYS Number:	608199
EC Number:	201-873-2
MDL number:	MFCD00002467
PubChem Substance ID:	24865138
NACRES:	NA.21

Phthalic acid may be used as a catalyst for the thiocyanation of aromatics and heteroaromatics and as an interfacial protector for the preparation of ordered mesoporous γ-alumina. It may be used as a model compound in understanding the adsorption of aromatic carboxylic acids on gold surfaces.

25, 250 g in poly bottle
1 kg in poly bottle

Quality Level	200
grade	ACS reagent
assay	99.5%
form	powder or crystals
impurities	0.05% insolubles, 0.5% water
ign. residue	0.02%
mp	210-211 °C (dec.) (lit.)
anion traces	chloride (Cl^-): 0.001%, nitrate (NO₃^-): 0.005%, sulfate (SO₄^2-): 0.005%
cation traces	Fe: 0.001%, heavy metals: 0.001%
SMILES string	OC(C1=C(C(O)=O)C=CC=C1)=O
InChI	1S/C8H6O4/c9-7(10)5-3-1-2-4-6(5)8(11)12/h1-4H,(H,9,10)(H,11,12)
InChI key	XNGIFLGASWRNHJ-UHFFFAOYSA-N

Polyphosphoric acid (PPA) is widely employed as acylation and alkylation reagent in various reactions. It is a strong mineral acid with excellent dehydrating 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 1

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Pivalic acid

Empirical Formula (Hill Notation):	C₅H₁₀O₂
Linear Formula:	(CH₃)₃CCOOH
CAS Number:	75-98-9
Molecular Weight:	102.13
MDL number:	MFCD00004194
EC Index Number:	200-922-5

storage conditions	Store below +30°C.
Quality Level	200
vapor pressure	0.85 hPa ( 20 °C)
potency	900 mg/kg LD₅₀, oral (Rat), 1900 mg/kg LD₅₀, skin (Rat)
expl. lim.	1.6 % (v/v)
mp	32-35 °C
transition temp	flash point 64 °C
solubility	25 g/L
density	0.91 g/cm³ at 20 °C
storage temp.	2-30°C
InChI	1S/C5H10O2/c1-5(2,3)4(6)7/h1-3H3,(H,6,7)
InChI key	IUGYQRQAERSCNH-UHFFFAOYSA-N

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Polyphosphoric acid

Linear Formula:	H_n+2P_nO_3n+1
CAS Number:	8017-16-1
EC Number:	232-417-0
MDL number:	MFCD00084480
eCl@ss:	38070203
NACRES:	NA.21

Polyphosphoric acid may be used in the synthesis of aromatic sulfones, N-substituted amides and 4-aminobenzophenones. It may also be used in dehydration, Fischer-Indole Synthesis, Beckmann Rearrangement and Schmidt Rearrangement reactions. It can be used as a catalyst in the synthesis of various aromatic ketones.
PPA may be used as a catalyst during the synthesis of dimethyl carbonate (DMC) from urea and methanol. It also acts as an absorbent for the ammonia generated in the process. PPA may be used to prepare silica-supported polyphosphoric acid (PPA-SiO2), an easy to handle, reusable heterogenous catalyst.

100 g in poly bottle
25 g in glass bottle
1 kg in poly bottle

Quality Level	100
grade	reagent grade
assay	115% H₃PO₄ basis
form	viscous liquid
greener alternative product characteristics	Design for Energy Efficiency Learn more about the Principles of Green Chemistry.
bp	300 °C (lit.)
density	2.06 g/mL at 25 °C

2.5, 4×2.5 kg in poly bottle
12 kg in poly drum
100, 500 g in poly bottle

pictograms	GHS05
signalword	Danger
hcodes	H290 - H314
pcodes	P234 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P363
RIDADR	UN 3264 8 / PGII
WGK Germany	WGK 1

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Potassium acetate

Empirical Formula (Hill Notation):	C₂H₃KO₂
Linear Formula:	CH₃COOK
CAS Number:	127-08-2
Molecular Weight:	98.14
Beilstein/REAXYS Number:	3595449
EC Number:	204-822-2
MDL number:	MFCD00012458
PubChem Substance ID:	329752436
NACRES:	NA.21

Go to Redi-Dri™ Product Listing 791733

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

Quality Level	200
grade	ACS reagent
vapor pressure	<0.0000001 hPa ( 25 °C)
assay	99.0%
form	powder or crystals
impurities	0.005% insolubles
pH	6.5-9.0 (25 °C, 5%)
solubility	water: soluble 98.2 g/L at 20 °C
density	1.57 g/cm³ at 25 °C (lit.)
anion traces	chloride (Cl^-): 0.003%, phosphate (PO₄^3-): 0.001%, sulfate (SO₄^2-): 0.002%
cation traces	Ca: 0.005%, Fe: 5 ppm, Mg: 0.002%, Na: 0.03%, heavy metals: 5 ppm (as Pb)
suitability	complies for IR spectroscopy
SMILES string	[K+].CC([O-])=O
InChI	1S/C2H4O2.K/c1-2(3)4;/h1H3,(H,3,4);/q;+1/p-1
InChI key	SCVFZCLFOSHCOH-UHFFFAOYSA-M

Potassium arsenate may be used as a reference material during the analysis of biological materials for the presence of arsenate. Potassium arsenate is used as a metabolic inhibitor and toxicity agent.

RIDADR	NONH for all modes of transport
WGK Germany	WGK 1
Flash Point F	Not applicable
Flash Point C	Not applicable

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Potassium arsenate monobasic

Empirical Formula (Hill Notation):	H₂AsKO₄
Linear Formula:	KH₂AsO₄
CAS Number:	7784-41-0
Molecular Weight:	180.03
EC Number:	232-065-8
MDL number:	MFCD00036296
PubChem Substance ID:	24891115
NACRES:	NA.25

5, 50, 100 g in glass bottle

Quality Level	200
reaction suitability	reagent type: catalyst core: arsenic
mp	277-283 °C (lit.)
SMILES string	[K+].O[As](O)([O-])=O
InChI	1S/AsH3O4.K/c2-1(3,4)5;/h(H3,2,3,4,5);/q;+1/p-1
InChI key	GVPLVOGUVQAPNJ-UHFFFAOYSA-M

Propionic acid (PA) also known as propanoic acid is a short chain fatty acid mainly used as food preservative. It is one of the main metabolic end product formed during the fermentation of undigested food in the colon by the microbiota. Its manufacture by glycerol/glucose co-fermentation using Propionibacterium acidipropionici has been reported. Crystal structure study reveals that PA crystals are monoclinic with space group P21/c.
Propionic acid (PA) is a naturally occurring carboxylic acid, which in its pure state exists as a colorless corrosive liquid with an unpleasant odor. It is miscible in water. Industrially it is produced by hydrocarboxylation of ethylene in presence nickel carbonyl as a catalyst. PA has been found to reduce food intake, lower the fatty acids content in plasma and liver, might improve tissue insulin sensitivity and exerts immunosuppressive actions. Propionic acid is an excellent raw material as it is stable, cheap and safe and can even be used as a food additive.

pictograms	GHS06,GHS08,GHS09
signalword	Danger
hcodes	H301 + H331 - H350 - H410
pcodes	P201 - P273 - P301 + P310 + P330 - P304 + P340 + P311
Personal Protective Equipment	Eyeshields, Faceshields, Gloves, type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges
RIDADR	UN 1677 6.1 / PGII
WGK Germany	WGK 3
Flash Point F	Not applicable
Flash Point C	Not applicable

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Propionic acid

Empirical Formula (Hill Notation):	C₃H₆O₂
Linear Formula:	CH₃CH₂COOH
CAS Number:	79-09-4
Molecular Weight:	74.08
Beilstein/REAXYS Number:	506071
EC Number:	201-176-3
MDL number:	MFCD00002756
eCl@ss:	39021305
PubChem Substance ID:	24865136
NACRES:	NA.21

Propionic acid may be used to alter limestone in order to increase its ability of CO2 uptake.

100, 4×100, 500 mL in glass bottle

Quality Level	200
grade	ACS reagent
vapor density	2.55 (vs air)
vapor pressure	2.4 mmHg ( 20 °C)
assay	99.5%
autoignition temp.	955 °F
expl. lim.	12.1 %
analyte chemical class(es)	amino acids
impurities	0.002% Carbonyl compounds, 0.10% Readily oxidizable substances (as HCOOH), 0.15% water
evapn. residue	0.01%
color	APHA: 20
refractive index	n20/D 1.386 (lit.)
bp	141 °C (lit.)
mp	24-23 °C (lit.)
solubility	H₂O: soluble
density	0.993 g/mL at 25 °C (lit.)
cation traces	heavy metals (as Pb): 0.001%
SMILES string	CCC(O)=O
InChI	1S/C3H6O2/c1-2-3(4)5/h2H2,1H3,(H,4,5)
InChI key	XBDQKXXYIPTUBI-UHFFFAOYSA-N

Assay (acidimetric): 98,0 %(m)
Identity (IR): conforms

pictograms	GHS02,GHS05,GHS07
signalword	Danger
hcodes	H226 - H314 - H335
pcodes	P210 - P233 - P240 - P280 - P303 + P361 + P353 - P305 + P351 + P338
Target Organs	Respiratory system
Personal Protective Equipment	Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
RIDADR	UN3463 - class 3 - Propionic acid
WGK Germany	WGK 1
Flash Point F	129.2 °F - closed cup
Flash Point C	54 °C - closed cup

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Pyridine-2,6-dicarboxylic acid

Empirical Formula (Hill Notation):	C₇H₅NO₄
Linear Formula:	2,6-(HOOC)₂C₅H₃N
CAS Number:	499-83-2
Molecular Weight:	167.12
MDL number:	MFCD00006299
EC Index Number:	207-894-3

Pyrophosphoric acid (diphosphoric acid) may be used in the following processes:

storage conditions	Store below +30°C.
Quality Level	200
vapor pressure	<0.01 hPa ( 20 °C)
assay	98.0% (acidimetric)
autoignition temp.	620 °C
potency	10500 mg/kg LD₅₀, oral (Rat)
pH	2.0 (20 °C, 5 g/L in H₂O)
mp	248-255 °C
solubility	5 g/L
bulk density	700 kg/m³
storage temp.	2-30°C
InChI	1S/C7H5NO4/c9-6(10)4-2-1-3-5(8-4)7(11)12/h1-3H,(H,9,10)(H,11,12)
InChI key	WJJMNDUMQPNECX-UHFFFAOYSA-N

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Pyridinium p-toluenesulfonate

Empirical Formula (Hill Notation): C₁₂H₁₃NO₃S

CAS Number: 24057-28-1

Molecular Weight: 251.30

Beilstein/REAXYS Number: 3764305

EC Number: 246-002-7

MDL number: MFCD00013108

PubChem Substance ID: 24853887

Кат. номер

232238-500G

232238-5G

232238-25G

232238-100G

Packaging
5, 25, 100, 500 g in poly bottle
Application
Efficient catalyst for the preparation of tetrahydropyranyl ethers (for OH-protection using DHP, cat. no. D106208).
As a co-catalyst with L-proline improved both yield and enantioselectivity of an asymmetric aldol condensation between dioxanones and aldehydes.
Параметры

Quality Level 200

assay 98%

SMILES string c1ccncc1.Cc2ccc(cc2)S(O)(=O)=O

InChI 1S/C7H8O3S.C5H5N/c1-6-2-4-7(5-3-6)11(8,9)10;1-2-4-6-5-3-1/h2-5H,1H3,(H,8,9,10);1-5H

InChI key ZDYVRSLAEXCVBX-UHFFFAOYSA-N

Safety Information

Personal Protective Equipment dust mask type N95 (US), Eyeshields, Gloves

RIDADR NONH for all modes of transport

WGK Germany WGK 2

Flash Point F Not applicable

Flash Point C Not applicable

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Pyrophosphoric acid

Empirical Formula (Hill Notation):	H₄O₇P₂
Linear Formula:	(HO)₂P(O)OP(O)(OH)₂
CAS Number:	2466-09-3
Molecular Weight:	177.98
EC Number:	219-574-0
MDL number:	MFCD00011343
PubChem Substance ID:	329756333

As chemical activator in the preparation of activated carbon from leather waste.
To modify the surface of calcium hydroxyapatite in order to improve the surface functionality.
To modify the surface strontium aluminate nanoparticles potential applications in super-long time in vivo imaging.
Synthesis of bis(diisopropylammonium) dihydrogendiphosphate trihydrate (DIPAP).
Synthesis of novel 3-methoxybenzylammonium cation diphosphate.

100, 500 g in poly bottle

grade	technical grade
Quality Level	200
assay	94% (by NaOH, titration)
form	liquid, solid, waxy solid
application(s)	ion chromatography: suitable
impurities	20% H₃PO₄
SMILES string	OP(O)(=O)OP(O)(O)=O
InChI	1S/H4O7P2/c1-8(2,3)7-9(4,5)6/h(H2,1,2,3)(H2,4,5,6)
InChI key	XPPKVPWEQAFLFU-UHFFFAOYSA-N