72928-75-7 Chromate(1-), (2,4-dihydro-4-((2-(hydroxy-kappaO)-4-nitrophenyl)azo-kappaN1)-5-methyl-2-phenyl-3H-pyrazol-3-onato(2-)-kappaO3)(3-((4,5-dihydro-3-methyl-5-(oxo-kappaO)-1-phenyl-1H-pyrazol-4-yl)azo-kappaN1)-4-(hydroxy-kappaO)benzenesulfonato(2-))-, hydrogen Chromate(1-), (2,4-dihydro-4-((2-hydroxy-4-nitrophenyl)azo)-5-methyl-2-phenyl-3H-pyrazol-3-onato(2-))(2,4-dihydro-4-((2-hydroxy-5-(aminosulfonyl)phenyl)azo)-5-methyl-2-phenyl-3H-pyrazol-3-onato(2-))-, hydrogen