2-Butenoic acid, 4-oxo-4-[[4-[(2-thiazolylamino)sulfonyl]phenyl]amino]-, (Z)- 4'-(2-Thiazolylsulfamoyl)maleanilic acid 515-57-1 Carbothiazol Carbotiazolo Maleanilic acid, 4'-(2-thiazolylsulfamoyl)- Maleylsulfathiazole NSC73483