2-Naphthalenecarboxamide, 4-((4-chloro-2-nitrophenyl)azo)-3-hydroxy-N-(2-methoxyphenyl)- 4-((4-Chloro-2-nitrophenyl)azo)-3-hydroxy-N-(2-methoxyphenyl)naphthalene-2-carboxamide 6410-39-5 EINECS 229-105-1