5-Formyl-2-thiophenecarboxylic acid

5-甲酰基-2-噻吩甲酸

Also known as: 5-Formyl-2-thiophenecarboxylic Acid, 5-Formylthiophene-2-carboxylic acid, 5-Formylthenoic acid, 5-Carboxythiophene-2-carboxaldehyde, 2-Carboxy-5-formylthiophene, 5-Formyl-2-thenoic acid, 5-Formyl-thiophene-2-carboxylic acid, 5-Formyl-thiophen-2-carboxylic acid, 5-Formylthenoic Acid, MFCD00191437

5-Formyl-2-thiophenecarboxylic acid (CAS 4565-31-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H4O3S and a molecular weight of 156.159 g/mol. It is also known as 5-Formyl-2-thiophenecarboxylic Acid, 5-Formylthiophene-2-carboxylic acid and 5-Formylthenoic acid. Key properties include a melting point of 169 °C, a boiling point of 371.4±27.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 178.4±23.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

4565-31-5

Jingsj CID

J-1966395-9

Molecular Formula

C₆H₄O₃S

Chinese Name

5-甲酰基-2-噻吩甲酸

Molecular Weight

156.159 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026