Ethyl 2-formamidothiazol-4-acetate , with CAS number of 64987-05-9, can be called 4-thiazoleacetic acid, 2-(formylamino)-, ethyl ester ; Ethyl (2-formamido-1,3-thiazol-4-yl)acetate ; ethyl [2-(formylamino)-1,3-thiazol-4-yl]acetate .