3H-Pyrazol-3-one, 4-((6-chloro-1,3-dihydro-1,3-diphenyl-2H-imidazo(4,5-b)quinoxalin-2-ylidene)ethylidene)-2,4-dihydro-5-methyl-2-phenyl 3H-Pyrazol-3-one, 4-((6-chloro-1,3-dihydro-1,3-diphenyl-2H-imidazo(4,5-b)quinoxalin-2-ylidene)ethylidene)-2,4-dihydro-5-methyl-2-phenyl- 4-((6-Chloro-1,3-dihydro-1,3-diphenyl-2H-imidazo(4,5-b)quinoxalin-2-ylidene)ethylidene)-2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one 63834-90-2 EINECS 264-507-0