5-(4-methylphenyl)isoxazole-3-carboxylic acid

5-(4-甲基苯基)异噁唑-3-羧酸

Also known as: 5-(p-tolyl)isoxazole-3-carboxylic acid, 5-(4-methylphenyl)-1,2-oxazole-3-carboxylic acid, 3-Isoxazolecarboxylic acid, 5-(4-methylphenyl)-, 5-p-Tolyl-isoxazole-3-carboxylic acid, MFCD04969583

5-(4-methylphenyl)isoxazole-3-carboxylic acid (CAS 33282-21-2) 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 5-(p-tolyl)isoxazole-3-carboxylic acid, 5-(4-methylphenyl)-1,2-oxazole-3-carboxylic acid and 3-Isoxazolecarboxylic acid, 5-(4-methylphenyl)-. Key properties include a melting point of 184ºC (dec.)(lit.), a boiling point of 433.5ºC at 760 mmHg, a density of 1.273g/cm3 and a flash point of 216ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

33282-21-2

Jingsj CID

J-26342-7

Molecular Formula

C₁₁H₉NO₃

Chinese Name

5-(4-甲基苯基)异噁唑-3-羧酸

Molecular Weight

203.19400 g/mol

Category

Organic Acids

Last updated

8/21/2026