5-Chlorothiophene-2-sulfonyl chloride

5-氯噻吩-2-磺酰氯

Also known as: 5-Chloro-2-thiophenesulfonyl chloride, 2-Chloro-5-(chlorosulfonyl)thiophene, 5-Chloro-2-thienylsulfonyl chloride, 5-Chlorothiophene-2-sulphonyl chloride, MFCD00051667

5-Chlorothiophene-2-sulfonyl chloride (CAS 2766-74-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H2Cl2O2S2 and a molecular weight of 217.094 g/mol. It is also known as 5-Chloro-2-thiophenesulfonyl chloride, 2-Chloro-5-(chlorosulfonyl)thiophene and 5-Chloro-2-thienylsulfonyl chloride. Key properties include a melting point of 25-28°C, a boiling point of 297.7±25.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 133.8±23.2 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

2766-74-7

Jingsj CID

J-26059-2

Molecular Formula

C₄H₂Cl₂O₂S₂

Chinese Name

5-氯噻吩-2-磺酰氯

Molecular Weight

217.094 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026