5-Amino-8-((4-((4-(N-oxalylamino)phenyl)azo)-6-sulfonaphthalenyl)azo)-2-naphthalenesulfonic acid, trisodium salt 68084-14-0 Acetic acid, ((4-((4-((4-amino-7-sulfo-1-naphthalenyl)azo)-7-sulfo-1-naphthalenyl)azo)phenyl)amino)oxo-, trisodium salt EINECS 268-426-1 Trisodium ((4-((4-((4-amino-7-sulphonato-1-naphthyl)azo)-7-sulphonato-1-naphthyl)azo)phenyl)amino)oxoacetate