trisodium 8-[[4-[(4-aminophenyl)azo]-6-sulphonatonaphthyl]azo]-5-[(2-hydroxy-6-sulphonatonaphthyl)azo]naphthalene-2-sulphonate

4-[[4-[(4-Aminophenyl)azo]-6-sodiosulfo-1-naphthalenyl]azo]-2'-hydroxy[1,1'-azobisnaphthalene]-6,6'-disulfonic acid disodium salt

2-Naphthalenesulfonic acid, 8-((4-((4-aminophenyl)azo)-6-sulfo-1-naphthalenyl)azo)-5-((2-hydroxy-6-sulfo-1-naphthalenyl)azo)-, trisodium salt

2-Naphthalenesulfonic acid, 5-((4-((4-((4-aminophenyl)azo)-6-sulfo-1-naphthalenyl)azo)-6-sulfo-1-naphthalenyl)azo)-6-hydroxy-, trisodium salt