p-Hydrazinobenzenesulfonamide, Phenylhydrazine-4-sulfonamide, 4-HYDRAZINO-BENZENSULFONAMIDE, 4-AMINOSULFONYLPHENYLHYDRAZINE, 4-(sulfamyl)phenylhydrazine, (4-sulfamoylphenyl)hydrazine, 4-HYDRAZINO-BENZYLSULFOAMIDE, 4-sulfamidophenyl hydrazine, 4-hydrazinobenzenesulphonamide