3H-Pyrazol-3-one, 4,4'-(((4-methoxyphenyl)methylene)bis((2-methyl-4,1-phenylene)azo))bis(2,4-dihydro-5-methyl-2-phenyl- 4,4'-Bis((4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo)-4''-methoxy-3,3'-dimethyltriphenylmethane 72906-47-9