5,6-dihydro-4H-cyclopenta[b]thiophene-2-carboxylic acid

5,6-二氢-4H-环戊[b]噻吩-2-羧酸

Also known as: 5,6-dihydro-4H-cyclopenta[b]thiophene-2-carboxylic acid, 5,6-dihydrocyclopenta[b]thiophene-2-carboxylic acid, 2-carboxy-5,6-dihydro-4H-cyclopenta[b]thiophene, AKOS B021710, ART-CHEM-BB B021710, BUTTPARK 146\08-20, TIMTEC-BB SBB007124, PRL3-CNNM4 interaction-IN-1

5,6-dihydro-4H-cyclopenta[b]thiophene-2-carboxylic acid (CAS 40133-06-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H8O2S and a molecular weight of 168.21300 g/mol. It is also known as 5,6-dihydrocyclopenta[b]thiophene-2-carboxylic acid, 2-carboxy-5,6-dihydro-4H-cyclopenta[b]thiophene and AKOS B021710. Key properties include a melting point of 200-202ºC, a boiling point of 347.7ºC at 760mmHg, a density of 1.395g/cm3 and a flash point of 164.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

40133-06-0

Jingsj CID

J-1584354-0

Molecular Formula

C₈H₈O₂S

Chinese Name

5,6-二氢-4H-环戊[b]噻吩-2-羧酸

Molecular Weight

168.21300 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026