2-Naphthalenesulfonic acid, 5-((6-amino-1-hydroxy-3-sulfo-5-((3-sulfophenyl)azo)-2-naphthalenyl)azo)-6-methoxy-8-((7-sulfo-4-((3-sulfophenyl)azo)-1-naphthalenyl)azo)-, pentasodium salt 71767-19-6 EINECS 275-997-0 Pentasodium 5-((6-amino-1-hydroxy-3-sulphonato-5-((3-sulphonatophenyl)azo)-2-naphthyl)azo)-6-methoxy-8-((7-sulphonato-4-((3-sulphonatophenyl)azo)naphthyl)azo)naphthalene-2-sulphonate