4-bromo-5-chlorothiophene-2-sulfonyl chloride

4-溴-5-氯噻吩-2-磺酰氯

Also known as: 4-bromo-5-chlorothiophene-2-sulfonyl chloride, 2-Thiophenesulfonyl chloride, 4-bromo-5-chloro-, 4-bromo-5-chloro-2-thiophenesulfonyl chloride

4-bromo-5-chlorothiophene-2-sulfonyl chloride (CAS 166964-35-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4HBrCl2O2S2 and a molecular weight of 295.99000 g/mol. It is also known as 2-Thiophenesulfonyl chloride, 4-bromo-5-chloro- and 4-bromo-5-chloro-2-thiophenesulfonyl chloride. Key properties include a melting point of 63ºC, a boiling point of 356.9ºC at 760 mmHg, a density of 2.059g/cm3 and a flash point of 169.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

166964-35-8

Jingsj CID

J-1377163-8

Molecular Formula

C₄HBrCl₂O₂S₂

Chinese Name

4-溴-5-氯噻吩-2-磺酰氯

Molecular Weight

295.99000 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026