1346238-13-8

Febuxostat-51 Febuxostat Impurity J isobutyl 2-(3-cyano-4-isobutoxyphenyl)-4-methylthiazole-5-carboxylate Febuxostat Impurity 52/diethyl 2,2'-(4-isobutoxy-1,3-phenylene)bis(4-methylthiazole-5- carboxylate) 5-Thiazolecarboxylic acid, 2,2'-[4-(2-methylpropoxy)-1,3-phenylene]bis[4-methyl-, 5,5'-diethyl ester