89-29-2 Benzenesulfonamide, 3-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)- Benzenesulfonamide, m-(3-methyl-5-oxo-2-pyrazolin-1-yl)- (8CI) EINECS 201-895-2 NSC 15355 m-(4,5-Dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)benzenesulphonamide