3-[(4-Amino-3-methylphenyl)azo]benzenesulfonic acid

4-氨基-3-甲基-3'-磺酸基偶氮苯

Also known as: 3-[(4-amino-3-methylphenyl)diazenyl]benzenesulfonic acid, Benzenesulfonic acid, 3-[(4-amino-3-methylphenyl)azo]-, EINECS 259-938-6, Einecs 259-938-6, m-[(4-amino-m-tolyl)azo]benzenesulphonic acid, 3-(4-AMINO-3-METHYL-PHENYL)DIAZENYLBENZENESULFONIC ACID, Benzenesulfonic acid, 3-(2-(4-amino-3-methylphenyl)diazenyl)-

3-[(4-Amino-3-methylphenyl)azo]benzenesulfonic acid (CAS 55994-13-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C13H13N3O3S and a molecular weight of 291.32600 g/mol. It is also known as 3-[(4-amino-3-methylphenyl)diazenyl]benzenesulfonic acid, Benzenesulfonic acid, 3-[(4-amino-3-methylphenyl)azo]- and EINECS 259-938-6. Key property: a density of 1.4 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

55994-13-3

Jingsj CID

J-1359602-6

Molecular Formula

C₁₃H₁₃N₃O₃S

Chinese Name

4-氨基-3-甲基-3'-磺酸基偶氮苯

Molecular Weight

291.32600 g/mol

Category

Organic Acids

Last updated

8/21/2026