2-(4-Butoxy-3-cyanophenyl)-4-methylthiazole-5-carboxylic acid

2-(4-丁氧基-3-氰基苯基)-4-甲基噻唑-5-羧酸

Also known as: Febuxostat Impurity 11, Febuxostat Impurity 16, Febuxostat N-Butyl Isomer, Febuxostat n-Butoxy Acid, Febuxostat-9, 2-(4-butoxy-3-cyanophenyl)-4-methyl-5-thiazolecarboxylic acid, 5-Thiazolecarboxylic acid, 2-(4-butoxy-3-cyanophenyl)-4-methyl-

2-(4-Butoxy-3-cyanophenyl)-4-methylthiazole-5-carboxylic acid (CAS 1657014-33-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C16H16N2O3S and a molecular weight of 316.37 g/mol. It is also known as Febuxostat Impurity 11, Febuxostat Impurity 16 and Febuxostat N-Butyl Isomer. Key property: a density of 1.31±0.1 g/cm3 (20 ºC 760 Torr). No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

1657014-33-9

Jingsj CID

J-1988395-3

Molecular Formula

C₁₆H₁₆N₂O₃S

Chinese Name

2-(4-丁氧基-3-氰基苯基)-4-甲基噻唑-5-羧酸

Molecular Weight

316.37 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026