Synonyms: Benzoic acid, 2-(2-(2-amino-5-hydroxy-6-(2-(4'-(2-(2-hydroxy-6-sulfo-1-naphthalenyl)diazenyl)-3,3'-dimethoxy(1,1'-biphenyl)-4-yl)diazenyl)-7-sulfo-1-naphthalenyl)diazenyl)-5-nitro-, sodium salt (1:?);7-Amino-4-hydroxy-8-((6-carboxy-4-nitrophenyl)azo)-3-((4-(4-((2-hydroxy-6-sulfonaphthalen-1-yl)azo)-3-methoxyphenyl)-2-methoxyphenyl)azo)-2-naphthalenesulfonic acid, sodium salt;2-((2-Amino-5-hydroxy-6-((4'-((2-hydroxy-6-sulpho-1-naphthyl)azo-3,3'-dimethoxy(1,1'-biphenyl)-4-yl)azo)-7-sulpho-1-naphthyl)azo)-5-nitrobenzoic acid, sodium salt;Benzoic acid, 2-((2-amino-5-hydroxy-6-((4'-((2-hydroxy-6-sulfo-1-naphthalenyl)azo)-3,3'-dimethoxy(1,1'-biphenyl)-4-yl)azo)-7-sulfo-1-naphthalenyl)azo)-5-nitro-, sodium salt