2-Naphthalenecarboxamide, 4-((2,3-dichlorophenyl)azo)-3-hydroxy-N-(5-(((3-hydroxy-4-((2-methoxy-4-nitrophenyl)azo)-2-naphthalenyl)carbonyl)amino)-1-naphthalenyl)- 4-((2,3-Dichlorophenyl)azo)-3-hydroxy-N-(5-(((3-hydroxy-4-((2-methoxy-4-nitrophenyl)azo)-2-naphthyl)carbonyl)amino)-1-naphthyl)naphthalene-2-carboxamide 68540-42-1 EINECS 271-303-5