1-(3-Pyridylcarbonyl)-5-phenyl-2-pyrazoline 121306-57-8 1H-Pyrazole, 4,5-dihydro-5-phenyl-1-(3-pyridinylcarbonyl)- 5-Phenyl-1-(3-pyridinylcarbonyl)-4,5-dihydro-1H-pyrazole