Synonyms: Chromate(5-), bis(3-(2-(2,4-diamino-5-(2-(4-sulfophenyl)diazenyl)phenyl)diazenyl)-2-hydroxy-5-nitrobenzenesulfonato(4-))-, sodium (1:5);Chromate(5-), bis(3-((2,4-diamino-5-((4-sulfophenyl)azo)phenyl)azo)-2-hydroxy-5-nitrobenzenesulfonato(4-))-, pentasodium;Pentasodium bis(3-((2,4-diamino-5-((4-sulphophenyl)azo)phenyl)azo)-2-hydroxy-5-nitrobenzenesulphonato(4-))chromate(5-)