2-Naphthalenecarboxamide, N,N'-(2-chloro-1,4-phenylene)bis(4-((2-chloro-4-nitrophenyl)azo)-3-hydroxy- 58872-62-1 EINECS 261-476-5 N,N'-(2-Chloro-1,4-phenylene)bis(4-((2-chloro-4-nitrophenyl)azo)-3-hydroxynaphthalene-2-carboxamide)