3-Pyrazoline-4-sulfonamide, N,N-diethyl-2,3-dimethyl-5-oxo-1-phenyl- 4-25-00-01962 (Beilstein Handbook Reference) 4684-90-6 BRN 0305428 N,N-Diethyl-2,3-dimethyl-5-oxo-1-phenyl-3-pyrazoline-4-sulfonamide