3-Methyl-5-phenyl-4-isoxazolecarboxylic acid

3-甲基-5-苯基-4-异恶唑甲酸

Also known as: 3-Methyl-5-phenylisoxazole-4-carboxylic acid, 4-Isoxazolecarboxylic acid, 3-methyl-5-phenyl-, 3-Methyl-5-phenyl-4-isoxazolecarboxylic acid, 3-Methyl-5-phenylisoxazole-4-carboxylic acid, AKOS PAO-1632, BUTTPARK 95\50-96, RARECHEM AL BE 1293, (4-Carboxy-3-methylisoxazol-5-yl)benzene

3-Methyl-5-phenyl-4-isoxazolecarboxylic acid (CAS 17153-21-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H9NO3 and a molecular weight of 203.19400 g/mol. It is also known as 3-Methyl-5-phenylisoxazole-4-carboxylic acid, 4-Isoxazolecarboxylic acid, 3-methyl-5-phenyl- and 3-Methyl-5-phenylisoxazole-4-carboxylic acid. Key properties include a melting point of 191ºC, a boiling point of 362.1ºC at 760mmHg, a density of 1.273g/cm3 and a flash point of 172.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

17153-21-8

Jingsj CID

J-1511857-8

Molecular Formula

C₁₁H₉NO₃

Chinese Name

3-甲基-5-苯基-4-异恶唑甲酸

Molecular Weight

203.19400 g/mol

Category

Organic Acids

Last updated

8/21/2026