4,5-Dimethylthiophene-2-carboxylic acid

4,5-二甲基噻吩-2-羧酸

Also known as: 2,3-Dimethylthiophene-5-carboxylic acid, 4,5-Dimethyl-2-thiophenecarboxylic acid, 4,5-Dimethylthiophene-2-carboxylic acid, 2-Thiophenecarboxylic acid, 4,5-dimethyl-, AKOS B020860, ART-CHEM-BB B020860, IFLAB-BB F2124-0595, MFCD00512748, RARECHEM AL BE 0647, TIMTEC-BB SBB009532

4,5-Dimethylthiophene-2-carboxylic acid (CAS 40808-24-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H8O2S and a molecular weight of 156.20200 g/mol. It is also known as 2,3-Dimethylthiophene-5-carboxylic acid, 4,5-Dimethyl-2-thiophenecarboxylic acid and 2-Thiophenecarboxylic acid, 4,5-dimethyl-. Key properties include a melting point of 206-211°C, a boiling point of 290.6ºC at 760 mmHg, a density of 1.259 g/cm3 and a flash point of 129.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

40808-24-0

Jingsj CID

J-48065-3

Molecular Formula

C₇H₈O₂S

Chinese Name

4,5-二甲基噻吩-2-羧酸

Molecular Weight

156.20200 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026