4-dihydro-5-methyl-2-phenyl-)azo]]bis[

3h-pyrazol-3-one, 4,4'-[[(4-methoxyphenyl)methylene]bis[(2-methyl-4,1-phenylene

3h-pyrazol-3-one,4,4'-[[(4-methoxyphenyl)methylene]bis[(2-methyl-4,1-phenylene)azo]]bis

4,4'-bis[[4,5-Dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl]azo]-4''-methoxy-3,3'-dimethyltriphenylmethane

4,4'-[[(4-methoxyphenyl)methylene]bis[(2-methyl-4,1-phenylene)azo]]bis[2,4-dihydro-5-methyl-2-phen3H-Pyrazol-3-one

4,4'-[[(4-Methoxyphenyl)methylene]bis[(2-methyl-4,1-phenylene)azo]]bis[2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one]