4-[(E)-2-(4-hydroxyphenyl)diazenyl]benzoic acid

4'-羟基偶氮苯-4-甲酸

Also known as: 4'-Hydroxyazobenzene-4-carboxylic acid, 4'-Hydroxyazobenzene-4-carboxylic acid hydrate, 4-((4-Hydroxyphenyl)azo)benzoic acid, 4-(4-Hydroxyphenylazo)benzoic acid, 4-Hydroxy-4'-carboxyazobenzene, 4-[(4-Carboxyphenyl)diazenyl]phenol, 4-[(4-Hydroxyphenyl)diazenyl]benzoic acid, 4-[(E)-(4-Hydroxyphenyl)diazenyl]benzoic acid, Benzoic acid, 4-[(4-hydroxyphenyl)azo]-, 4-HYDROXY-AZOBENZENE-4'-CARBOXYLIC ACID, p-Hydroxyazobenzene-p'-carboxylic acid

4-[(E)-2-(4-hydroxyphenyl)diazenyl]benzoic acid (CAS 2497-38-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C13H10N2O3 and a molecular weight of 242.230 g/mol. It is also known as 4'-Hydroxyazobenzene-4-carboxylic acid, 4'-Hydroxyazobenzene-4-carboxylic acid hydrate and 4-((4-Hydroxyphenyl)azo)benzoic acid. Key properties include a melting point of 260 °C(dec.), a boiling point of 497.7±30.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 254.8±24.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

2497-38-3

Jingsj CID

J-1432148-3

Molecular Formula

C₁₃H₁₀N₂O₃

Chinese Name

4'-羟基偶氮苯-4-甲酸

Molecular Weight

242.230 g/mol

Category

Organic Acids

Last updated

8/21/2026