2,6-二氟苯甲酰肼

N-氰基羰亚胺二苯基酯

磺胺

N-[4-(aminosulfonyl)phenyl]-N'-cyanocarbamidic acid phenyl ester

4-(5-amino-1H-[1,2,4]triazol-3-ylamino)benzenesulfonamide