Febuxostat1). Chemacil Name: 2-[3-Cyano-4-isobutoxyphenyl]-4-methylthiazole-5-carboxylic acid; 2-[3-Cyano-4-(2-methylpropoxy)phenyl]-4-methyl-1,3-thiazole-5-carboxylic acid;2). CAS No.: 144060-53-7;3). Molecular Formula: C16H16N2O3S;4). Molecular Weight: 316.37;5). Spec: 99.5%(HPLC);6). Appearance: White crystall powder;7). Usage: Anti-gout drug.