3H-Pyrazol-3-one, 4,4'-((phenylmethylene)bis((2-methyl-4,1-phenylene)azo))bis(2,4-dihydro-5-methyl-2-phenyl- 4,4'-((Phenylmethylene)bis((2-methyl-p-phenylene)azo))bis(2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one) 66085-69-6 EINECS 266-130-7