73003-28-8 73018-74-3 Chromate(3-), bis(2,4-dihydro-4-((2-hydroxy-3-nitro-5-methylphenyl)azo)-5-methyl-2-(4-sulfophenyl)-3H-pyrazol-3-onato(3-))-, trihydrogen Chromate(3-), bis(4-(4,5-dihydro-4-((2-hydroxy-5-methyl-3-nitrophenyl)azo)-3-methyl-5-oxo-1H-pyrazol-1-yl)benzenesulfonato(3-))-, trihydrogen