Synonyms: N-[4-(Pyrimidin-2-ylsulfamoyl)phenyl]acetamide, Sulfadiazine Imp. E (Pharmeuropa), Acetylsulfadiazine, N-Acetyl Sulfadiazine, N-[4-[(2-Pyrimidinylamino)sulfonyl]phenyl]acetamide, 2-[(p-Acetamidophenyl)sulfonamido]pyrimidine, N4-Acetylsulfadiazine, 4’-(2-Pyrimidinylsulfamoyl)acetanilide, 4N-Acetylsulfadiazine, Sulfadiazine Impurity E