EINECS 233-374-0, 2-Naphthalenesulfonic acid, 8-(2-(7-amino-1-hydroxy-3-sulfo-2-naphthalenyl)diazenyl)-5-(2-(4-(2-phenyldiazenyl)-7-sulfo-1-naphthalenyl)diazenyl)-, sodium salt (1:3), 2-Naphthalenesulfonic acid, 8-((7-amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo)-5-((4-(phenylazo)-7-sulfo-1-naphthalenyl)azo)-, trisodium salt, Trisodium 8-((7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo)-5-((4-(phenylazo)-7-sulphonatonaphthyl)azo)naphthalene-2-sulphonate,