Chromate(2-),[2,4-dihydro-4-[2-[2-(hydroxy-kO)-5-nitrophenyl]diazenyl-kN1]-5-methyl-2-phenyl-3H-pyrazol-3-onato(2-)-kO3][2-(hydroxy-kO)-3-[2-[2-(hydroxy-kO)-1-naphthalenyl]diazenyl-kN1]-5-nitrobenzenesulfonato(3-)]-,sodium hydrogen (1:1:1)