4-[(5-chloro-4-methyl-2-sulfophenyl)azo]-3-hydroxy-2-naphthoic acid

4-[(5-氯-4-甲基磺化苯基)偶氮]-3-羟基-2-萘甲酸

Also known as: 4-[(5-chloro-4-methyl-2-sulfophenyl)azo]-3-hydroxy-2-naphthalenecarboxylic acid, C.I. Pigment Red 48, Pigment Red No. 48, 2-Naphthalenecarboxylic acid, 4-(2-(5-chloro-4-methyl-2-sulfophenyl)diazenyl)-3-hydroxy-, EINECS 240-150-6

4-[(5-chloro-4-methyl-2-sulfophenyl)azo]-3-hydroxy-2-naphthoic acid (CAS 16013-44-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C18H13ClN2O6S and a molecular weight of 420.82400 g/mol. It is also known as 4-[(5-chloro-4-methyl-2-sulfophenyl)azo]-3-hydroxy-2-naphthalenecarboxylic acid, C.I. Pigment Red 48 and Pigment Red No. 48. Key property: a density of 1.59g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

16013-44-8

Jingsj CID

J-1146927-0

Molecular Formula

C₁₈H₁₃ClN₂O₆S

Chinese Name

4-[(5-氯-4-甲基磺化苯基)偶氮]-3-羟基-2-萘甲酸

Molecular Weight

420.82400 g/mol

Category

Organic Acids

Last updated

8/21/2026