4-Methylthiophene-2-carboxylic acid

4-甲基噻吩-2-甲酸

Also known as: 4-Methyl-2-thiophenecarboxylic acid, 2-Carboxy-4-methylthiophene, 4-Methyl-2-thenoic acid, 5-Methylthiophene-2-carboxylic acid, 5-Methyl-2-thiophenecarboxylic acid

4-Methylthiophene-2-carboxylic acid (CAS 14282-78-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H6O2S and a molecular weight of 142.176 g/mol. It is also known as 4-Methyl-2-thiophenecarboxylic acid, 2-Carboxy-4-methylthiophene and 4-Methyl-2-thenoic acid. Key properties include a melting point of 122-126 °C(lit.), a boiling point of 277.2±20.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 121.5±21.8 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

14282-78-1

Jingsj CID

J-12861-8

Molecular Formula

C₆H₆O₂S

Chinese Name

4-甲基噻吩-2-甲酸

Molecular Weight

142.176 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026