Synonyms: Chromate(1-), (1-(2-(2-(hydroxy-kappaO)-5-methyl-3-nitrophenyl)diazenyl-kappaN1)-2-naphthalenolato(2-)-kappaO)(1-(2-(2-(hydroxy-kappaO)-5-nitrophenyl)diazenyl-kappaN1)-2-naphthalenolato(2-)-kappaO)-, hydrogen (1:1);Chromate(1-), (1-((2-hydroxy-5-nitrophenyl)azo)-2-naphthalenolato)(1-((2-hydroxy-5-methyl-3-nitrophenyl)azo)-2-naphthalenolato)-, hydrogen;Chromate(1-), (1-((2-(hydroxy-kappaO)-5-methyl-3-nitrophenyl)azo-kappaN1)-2-naphthalenolato(2-)-kappaO)(1-((2-(hydroxy-kappaO)-5-nitrophenyl)azo-kappaN1)-2-naphthalenolato(2-)-kappaO)-, hydrogen;Hydrogen (1-((2-hydroxy-5-methyl-3-nitrophenyl)azo)-2-naphtholato(2-))(1-((2-hydroxy-5-nitrophenyl)azo)-2-naphtholato(2-))chromate(1-);chromium(3+)ato(2-) hydrogen 4-methyl-2-nitro-6-[(2-oxonaphthalen-1(2H)-ylidene)diazanidyl]phenolatato(2-) ({4-oxo-3-[(2-oxonaphthalen-1(2H)-ylidene)hydrazinylidene]cyclohexa-1,5-dien-1-yl}imino)bisoxidanido(2-) (1:1:1:1)