2-[3-Carboxy-4-(2-methylpropoxy)phenyl]-4-methyl-5-thiazolecarboxylic acid

2-[3-羧基-4-(2-甲基丙氧基)苯基]-4-甲基-5-噻唑羧酸

Also known as: Febuxostat Dicarboxylic Acid Impurity, Febuxostat Impurity 1, Febuxostat Impurity 26, Febuxostat Impurity C (DA), Febuxostat-2, 5-Thiazolecarboxylic acid, 2-[3-carboxy-4-(2-methylpropoxy)phenyl]-4-methyl-, 2-(3-Carboxy-4-isobutoxyphenyl)-4-methyl-1,3-thiazole-5-carboxylic acid, 2-(3-carboxy-4-isobutoxyphenyl)-4-methylthiazole-5-carboxylic acid, 2-[3-carboxyl-4-(2-methylpropoxy)phenyl]-4-methyl-5-thiazolecarboxylic acid

2-[3-Carboxy-4-(2-methylpropoxy)phenyl]-4-methyl-5-thiazolecarboxylic acid (CAS 1239233-87-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C16H17NO5S and a molecular weight of 335.375 g/mol. It is also known as Febuxostat Dicarboxylic Acid Impurity, Febuxostat Impurity 1 and Febuxostat Impurity 26. Key properties include a boiling point of 568.9±60.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 297.9±32.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

1239233-87-4

Jingsj CID

J-1988392-0

Molecular Formula

C₁₆H₁₇NO₅S

Chinese Name

2-[3-羧基-4-(2-甲基丙氧基)苯基]-4-甲基-5-噻唑羧酸

Molecular Weight

335.375 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026