2-Naphthalenecarboxamide, 4-((2,5-dichlorophenyl)azo)-3-hydroxy-N-(3-nitrophenyl)- 4-((2,5-Dichlorophenyl)azo)-3-hydroxy-N-(3-nitrophenyl)naphthalene-2-carboxamide 84029-83-4 EINECS 281-753-4