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