(2-Hydroxy-1-((2-hydroxynaphthalenyl)azo)-4-nitrobenzene(2-))(4-hydroxy-6-sulfomethylamino-3-((2-hydroxy-5-nitro-1-sulfophenyl)azo)-2-naphthalenesulfonate(2-))chromate(4-), tetrahydrogen 73287-44-2 Chromate(4-), (4-hydroxy-3-((2-hydroxy-5-nitro-3-sulfophenyl)azo)-6-((sulfomethyl)amino)-2-naphthalenesulfonato(5-))(1-((2-hydroxy-4-nitrophenyl)azo)-2-naphthalenolato(2-))-, tetrahydrogen