p-(4,5-Dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)benzenesulphonamide, 4-(3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonamide, 1-(4'-Sulfamidophenyl)-3-methylpyrazolon-5, 1-[4-(Aminosulfonyl)phenyl]-3-methyl-3-pyrazolin-5-one, 4-(3-methyl-5-oxo-2,5-dihydro-pyrazol-1-yl)-benzenesulfonamide, p-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)benzenesulfonamide, LeadQuest Compound 4, benzenesulfonamide,4-(4,5-dihydro-3-methyl-5-oxo-1h-pyrazol-1-yl), 1-<4-Sulfamoyl-phenyl>-3-methyl-pyrazolon-(5), 4-(3-methyl-5-oxo-2-pyrazolin-1-yl)benzenesulfonamide