2-Naphthalenecarboxamide, 4-((4-chloro-2-methylphenyl)azo)-N-(2,4-dimethylphenyl)-3-hydroxy- 4-((4-Chloro-2-methylphenyl)azo)-3-hydroxy-N-(2,4-dimethylphenyl)-2-naphthalamide 72928-10-0