109333-38-2 1H-Pyrazole, 4,5-dihydro-3-(4-chlorophenyl)-1-(2,4-dinitrophenyl)-5-phenyl- 2-Pyrazoline, 3-(4-chlorophenyl)-1-(2,4-dinitrophenyl)-5-phenyl- 3-(4-Chlorophenyl)-1-(2,4-dinitrophenyl)-5-phenyl-2-pyrazoline