ChemicalBook > CAS DataBase List > Pyrrole-2-carboxylic acid, 3-methyl- (6CI,7CI)

Pyrrole-2-carboxylic acid, 3-methyl- (6CI,7CI)

Product Name
Pyrrole-2-carboxylic acid, 3-methyl- (6CI,7CI)
CAS No.
90724-57-5
Chemical Name
Pyrrole-2-carboxylic acid, 3-methyl- (6CI,7CI)
Synonyms
3-Methyl-1H-pyrrole-2-carboxylicacid;3-Methylpyrrole-2-carboxylic Acid;3-Methyl-1H-pyrrol-2-carboxylic acid;Pyrrole-2-carboxylic acid, 3-methyl-;Pyrrole-2-carboxylic acid, 3-methyl- (6CI,7CI)
CBNumber
CB81064355
Molecular Formula
C6H7NO2
Formula Weight
125.13
MOL File
90724-57-5.mol
More
Less

Pyrrole-2-carboxylic acid, 3-methyl- (6CI,7CI) Property

Melting point:
200 °C (decomp)
Boiling point:
322.4±22.0 °C(Predicted)
Density 
1.295±0.06 g/cm3(Predicted)
storage temp. 
2-8°C
pka
5.10±0.50(Predicted)
Appearance
White to gray Solid
More
Less

Safety

HS Code 
2933998090
More
Less

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

More
Less

N-Bromosuccinimide Price

Sigma-Aldrich
Product number
T325260
Product name
3-METHYL-1H-PYRROLE-2-CARBOXYLIC ACID
Purity
AldrichCPR
Packaging
5MG
Price
$148
Updated
2025/07/31
TRC
Product number
M336565
Product name
3-Methyl-1H-pyrrole-2-carboxylicAcid
Packaging
250mg
Price
$330
Updated
2021/12/16
AK Scientific
Product number
W9332
Product name
3-Methyl-1H-pyrrole-2-carboxylicacid
Packaging
250mg
Price
$141
Updated
2021/12/16
SynQuest Laboratories
Product number
4H21-1-CL
Product name
3-Methyl-1H-pyrrole-2-carboxylic acid
Packaging
1g
Price
$378
Updated
2021/12/16
American Custom Chemicals Corporation
Product number
CHM0150130
Product name
3-METHYL-1H-PYRROLE-2-CARBOXYLIC ACID
Purity
95.00%
Packaging
5MG
Price
$496.29
Updated
2021/12/16
More
Less

Pyrrole-2-carboxylic acid, 3-methyl- (6CI,7CI) Chemical Properties,Usage,Production

Synthesis

40611-69-6

90724-57-5

General procedure for the synthesis of 3-methyl-1H-pyrrole-2-carboxylic acid from methyl 3-methyl-1H-pyrrole-2-carboxylate: 1. dissolve methyl 3-methyl-1H-pyrrole-2-carboxylate (2.0 g, 14.37 mmol, purchased from Otava Chemicals, Catalog No. 1056278) in 50 mL of methanol. 2. 21.5 mL of 2N aqueous sodium hydroxide was added to the solution. 3. The reaction mixture was stirred overnight at room temperature, then warmed to 60 °C and continued stirring for 20 hours. 4. Upon completion of the reaction, the methanol was removed by vacuum evaporation. 5. The remaining aqueous solution was neutralized with 21.5 mL of 2N hydrochloric acid solution. 6. The product was extracted using a 95:5 chloroform/methanol mixture. 7. The organic phase was washed with brine, dried over magnesium sulfate, filtered and evaporated in vacuum. 8. 1.38 g (77% yield) of the target compound 3-methyl-1H-pyrrole-2-carboxylic acid was obtained as a brown solid. LRMS (m/z): 126 (M + 1)+. 1H NMR (400 MHz, DMSO) δ 12.06 (s, 1H), 11.30 (s, 1H), 6.84-6.75 (m, 1H), 6.02-5.93 (m, 1H), 2.24 (s, 3H).

References

[1] Patent: WO2012/146666, 2012, A1. Location in patent: Page/Page column 105
[2] Patent: EP2518070, 2012, A1. Location in patent: Page/Page column 44
[3] Patent: WO2014/60431, 2014, A1. Location in patent: Page/Page column 91
[4] Patent: WO2014/60432, 2014, A1. Location in patent: Page/Page column 122; 123

Pyrrole-2-carboxylic acid, 3-methyl- (6CI,7CI) Preparation Products And Raw materials

Raw materials

Preparation Products

More
Less

Pyrrole-2-carboxylic acid, 3-methyl- (6CI,7CI) Suppliers

A.J Chemicals
Tel
--
Fax
--
Email
sales@ajchem.in
Country
India
ProdList
6100
Advantage
58
More
Less

View Lastest Price from Pyrrole-2-carboxylic acid, 3-methyl- (6CI,7CI) manufacturers

Career Henan Chemical Co
Product
Pyrrole-2-carboxylic acid, 3-methyl- (6CI,7CI) 90724-57-5
Price
US $1.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
200kg
Release date
2020-01-08