6-amino-5-((E)-(4-(4-((E)-(2-amino-8-hydroxy-6-sulfo-1-naphthyl)azo)phenyl)phenyl)azo)-4-hydroxy-naphthalene-2-sulfonic acid
6-amino-5-((e)-(4-(4-((e)-(2-amino-8-hydroxy-6-sulfo-1-naphthyl)azo)phenyl)phenyl)azo)-4-hydroxy-naphthalene-2-sulfonic acid