7-Anilino-4-hydroxy-2-naphthalenesulfonic acid

4-羟基-7-苯胺基萘-2-磺酸

Also known as: 4-Hydroxy-7-(phenylamino)naphthalene-2-sulfonic acid, 2-Anilino-5-naphthol-7-sulfonic acid, 2-Naphthalenesulfonic acid, 4-hydroxy-7-(phenylamino)-, 2-Phenylamino-5-naphthol-7-sulfonic acid, 7-(phenylamino)-4-naphthol-2-sulfonic acid, 7-Anilino-4-hydroxynaphthalene-2-sulfonic acid, N-Phenyl-J-acid, Phenyl J Acid, 1-Hydroxy-6-phenylamino-3-naphthalenesulfonic acid, 2-(N-Phenylamino)-5-naphthol-7-sulfonic acid, EINECS 204-320-3, MFCD00035714

7-Anilino-4-hydroxy-2-naphthalenesulfonic acid (CAS 119-40-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C16H13NO4S and a molecular weight of 315.344 g/mol. It is also known as 4-Hydroxy-7-(phenylamino)naphthalene-2-sulfonic acid, 2-Anilino-5-naphthol-7-sulfonic acid and 2-Naphthalenesulfonic acid, 4-hydroxy-7-(phenylamino)-. Key property: a density of 1.5±0.1 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

119-40-4

Jingsj CID

J-24000-6

Molecular Formula

C₁₆H₁₃NO₄S

Chinese Name

4-羟基-7-苯胺基萘-2-磺酸

Molecular Weight

315.344 g/mol

Category

Organic Acids

Last updated

8/21/2026