5-Chloro-3-methylbenzo[b]thiophene-2-sulfonyl chloride

5-氯-3-甲基苯并[b]噻吩-2-磺酰氯

Also known as: 5-Chloro-3-methyl-1-benzothiophene-2-sulfonyl chloride, 5-Chloro-3-methylbenzo[b]thiophene-2-sulphonyl chloride, Benzo[b]thiophene-2-sulfonyl chloride, 5-chloro-3-methyl-, MFCD00173797

5-Chloro-3-methylbenzo[b]thiophene-2-sulfonyl chloride (CAS 166964-33-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H6Cl2O2S2 and a molecular weight of 281.179 g/mol. It is also known as 5-Chloro-3-methyl-1-benzothiophene-2-sulfonyl chloride, 5-Chloro-3-methylbenzo[b]thiophene-2-sulphonyl chloride and Benzo[b]thiophene-2-sulfonyl chloride, 5-chloro-3-methyl-. Key properties include a melting point of 153 °C, a boiling point of 414.0±45.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 204.2±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

166964-33-6

Jingsj CID

J-42176-0

Molecular Formula

C₉H₆Cl₂O₂S₂

Chinese Name

5-氯-3-甲基苯并[b]噻吩-2-磺酰氯

Molecular Weight

281.179 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026