4,4'-Biphenyldisulfonyl chloride

4,4'-联苯二磺酰氯

Also known as: 4,4'-Diphenyldisulfonyl chloride, 4,4'-Diphenyldisulfonyl dichloride, Biphenyl-4,4'-disulfonyl dichloride, 4,4'-Biphenyldisulfonyl dichloride, 4,4'-Biphenylylenedisulfonyl chloride, 4-(4-chlorosulfonylphenyl)benzenesulfonyl chloride, [1,1'-Biphenyl]-4,4'-disulfonyl dichloride, p,p'-Diphenyldisulfonyl chloride

4,4'-Biphenyldisulfonyl chloride (CAS 3406-84-6) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H8Cl2O4S2 and a molecular weight of 351.225 g/mol. It is also known as 4,4'-Diphenyldisulfonyl chloride, 4,4'-Diphenyldisulfonyl dichloride and Biphenyl-4,4'-disulfonyl dichloride. Key properties include a melting point of 205-208 °C(lit.), a boiling point of 476.7±38.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 242.1±26.8 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

3406-84-6

Jingsj CID

J-36225-8

Molecular Formula

C₁₂H₈Cl₂O₄S₂

Chinese Name

4,4'-联苯二磺酰氯

Molecular Weight

351.225 g/mol

Category

Aromatic Hydrocarbons

Last updated

8/21/2026