6408-22-6 C.I. ACID BLACK 84 Chromate(7-), bis(4-(hydroxy-kappaO)-3-((2-(hydroxy-kappaO)-5-nitro-3-sulfophenyl)azo-kappaN1)-6-((sulfomethyl)amino)-2-naphthalenesulfonato(5-))-, hexasodium hydrogen Chromate(7-), bis(4-hydroxy-3-((2-hydroxy-5-nitro-3-sulfophenyl)azo)-6-((sulfomethyl)amino)-2-naphthalenesulfonato(5-))-, hexasodium hydrogen EINECS 229-050-3 Hexasodium hydrogen bis(4-hydroxy-3-((2-hydroxy-5-nitro-3-sulphophenyl)azo)-6-((sulphomethyl)amino)naphthalene-2-sulphonato(5-))chromate(7-)