Disodium 2,2'-dihydroxy-4,4'-dimethoxy-5,5'-disulfobenzophenone

2,2'-二羟基-4,4'-二甲氧基二苯甲酮-5,5'-二磺酸钠

Also known as: Benzophenone-9, 2,2'-Dihydroxy-4,4'-dimethoxybenzophenone-5,5'-disulfonic acid disodium salt, Uvinul DS 49, Disodium 3,3'-carbonylbis(4-hydroxy-6-methoxybenzenesulfonate), Benzenesulfonic acid, 3,3'-carbonylbis[4-hydroxy-6-methoxy-, sodium salt (1:2), MFCD02683831, UNII-7925W14T4L

Disodium 2,2'-dihydroxy-4,4'-dimethoxy-5,5'-disulfobenzophenone (CAS 76656-36-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C15H12Na2O11S2 and a molecular weight of 478.359 g/mol. It is also known as Benzophenone-9, 2,2'-Dihydroxy-4,4'-dimethoxybenzophenone-5,5'-disulfonic acid disodium salt and Uvinul DS 49. Key property: a melting point of 350°C (dec.). No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

76656-36-5

Jingsj CID

J-45052-6

Molecular Formula

C₁₅H₁₂Na₂O₁₁S₂

Chinese Name

2,2'-二羟基-4,4'-二甲氧基二苯甲酮-5,5'-二磺酸钠

Molecular Weight

478.359 g/mol

Category

Organic Acids

Last updated

8/21/2026