4,4'-Dichlorodiphenylsulfone-3,3'-disulfonic acid disodium salt

4,4'-二氯二苯砜-3,3'-二磺酸二钠

Also known as: Disodium bis(4-chloro-3-sulfophenyl)sulfone, Disodium 3,3'-sulfonylbis(6-chlorobenzenesulfonate), Diphenylsulfone-4,4'-dichloro-3,3'-disulfonic Acid Disodium Salt, Disodium Diphenylsulfone-4,4'-dichloro-3,3'-disulfonate, Disodium 4,4'-dichloro-3,3'-sulfodiphenyl sulfone, Sodium 5,5'-sulfonylbis(2-chlorobenzenesulfonate), disodium,2-chloro-5-(4-chloro-3-sulfonatophenyl)sulfonylbenzenesulfonate, Benzenesulfonic acid, 3,3'-sulfonylbis[6-chloro-, sodium salt (1:2)

4,4'-Dichlorodiphenylsulfone-3,3'-disulfonic acid disodium salt (CAS 51698-33-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C12H6Cl2Na2O8S3 and a molecular weight of 491.252 g/mol. It is also known as Disodium bis(4-chloro-3-sulfophenyl)sulfone, Disodium 3,3'-sulfonylbis(6-chlorobenzenesulfonate) and Diphenylsulfone-4,4'-dichloro-3,3'-disulfonic Acid Disodium Salt. Key property: a melting point of >300ºC. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

51698-33-0

Jingsj CID

J-1382951-9

Molecular Formula

C₁₂H₆Cl₂Na₂O₈S₃

Chinese Name

4,4'-二氯二苯砜-3,3'-二磺酸二钠

Molecular Weight

491.252 g/mol

Category

Organic Acids

Last updated

8/21/2026