ethyl 2-(4-(sec-butoxy)-3-cyanophenyl)-4-methylthiazole-5- carboxylate

Febuxostat 2-Butyl Isomer Ethyl Ester is an intermediate for the synthesis of Febuxostat 2-Butyl Isomer (F229040), which is an impurity of Febuxostat (F229000) which is a xanthine oxidase/xanthine dehydrogenase inhibitor.