1,3,4-Thiadiazole-2-sulfonamide, 5-amino- (8CI)(9CI) 1,3,4-Thiadiazole-5-sulfonamide, 2-amino- 14949-00-9 2-Amino-1,3,4-thiadiazole-5-sulfonamide 5-Amino-1,3,4-thiadiazole-2-sulfonamide 5-Amino-TDSNH2 CL 5343 NSC 22979 Tio-urasin Zolamide