Chromate(2-), (3-(hydroxy-kappaO)-4-(2-(2-(hydroxy-kappaO)-1-naphthalenyl)diazenyl-kappaN1)-7-nitro-1-naphthalenesulfonato(3-))(1-(2-(2-(hydroxy-kappaO)-5-nitrophenyl)diazenyl-kappaN1)-2-naphthalenolato(2-)-kappaO)-, sodium hydrogen (1:1:1);(1-((2-Hydroxy-5-nitrophenyl)azo)-2-naphthalenolato(2-))(3-hydroxy-4-((2-hydroxy-1-naphthyl)azo)-7-nitro-1-naphthalenesulfonato(3-))chromate(3-), sodium dihydrogen;Chromate(2-), (3-hydroxy-4-((2-hydroxy-1-naphthalenyl)azo)-7-nitro-1-naphthalenesulfonato(3-))(1-((2-hydroxy-5-nitrophenyl)azo)-2-naphthalenolato(2-))-, sodium hydrogen;Hydrogen sodium (3-hydroxy-4-((2-hydroxy-1-naphthyl)azo)-7-nitronaphthalene-1-sulphonato(3-))(1-((2-hydroxy-5-nitrophenyl)azo)-2-naphtholato(2-))chromate(2-);chromium(3+) hydrogen sodium 7-nitro-4-[2-(2-oxidonaphthalen-1-yl)diazan-2-id-1-ylidene]-3-oxo-3,4-dihydronaphthalene-1-sulfonate ({4-oxo-3-[(2-oxonaphthalen-1(2H)-ylidene)hydrazinylidene]cyclohexa-1,5-dien-1-yl}imino)dioxidanide (1:1:1:1:1)