Chromate(2-), (2-(hydroxy-kappaO)-3-(2-(2-(hydroxy-kappaO)-1-naphthalenyl)diazenyl-kappaN1)-5-nitrobenzenesulfonato(3-))(1-(2-(2-(hydroxy-kappaO)-4-nitrophenyl)diazenyl-kappaN1)-2-naphthalenolato(2-)-kappaO)-, hydrogen (1:2);Chromate(2-), (2-(hydroxy-kappaO)-3-((2-(hydroxy-kappaO)-1-naphthalenyl)azo-kappaN1)-5-nitrobenzenesulfonato(3-))(1-((2-(hydroxy-kappaO)-4-nitrophenyl)azo-kappaN1)-2-naphthalenolato(2-)-kappaO)-, dihydrogen;Dihydrogen (2-hydroxy-3-((2-hydroxy-1-naphthyl)azo)-5-nitrobenzene-1-sulphonato(3-))(1-((2-hydroxy-4-nitrophenyl)azo)-2-naphtholato(2-))chromate(2-);chromium(3+) hydrogen 5-nitro-2-oxido-3-[(2-oxonaphthalen-1(2H)-ylidene)diazanidyl]benzenesulfonate ({3-oxo-4-[(2-oxonaphthalen-1(2H)-ylidene)hydrazinylidene]cyclohexa-1,5-dien-1-yl}imino)dioxidanide (1:2:1:1)