3H-Pyrazol-3-one

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