4,4'-diaminobiphenyl-3,3'-dicarboxylic acid

4,4'-二氨基-[1,1'-联苯]-3,3'-二羧酸

Also known as: 3,3'-Benzidinedicarboxylic acid, 3,3'-Dicarboxybenzidine, 4,4'-Diamino-3,3'-biphenyldicarboxylic acid, 4,4'-Diamino-3,3'-biphenylylenedicarboxylic acid, 5,5'-Bianthranilic acid, 5,5'-Dianthranilic acid, Benzidine-3,3'-dicarboxylic acid, Benzidine-m,m'-dicarboxylic acid, 2-amino-5-(4-amino-3-carboxyphenyl)benzoic acid, EINECS 218-348-9

4,4'-diaminobiphenyl-3,3'-dicarboxylic acid (CAS 2130-56-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C14H12N2O4 and a molecular weight of 272.25600 g/mol. It is also known as 3,3'-Benzidinedicarboxylic acid, 3,3'-Dicarboxybenzidine and 4,4'-Diamino-3,3'-biphenyldicarboxylic acid. Key properties include a boiling point of 557.7ºC at 760 mmHg, a density of 1.476g/cm3 and a flash point of 291.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

2130-56-5

Jingsj CID

J-1360140-5

Molecular Formula

C₁₄H₁₂N₂O₄

Chinese Name

4,4'-二氨基-[1,1'-联苯]-3,3'-二羧酸

Molecular Weight

272.25600 g/mol

Category

Organic Acids

Last updated

8/21/2026