2-Naphthalenecarboxamide,N-butyl-4-[(2,5-dimethoxyphenyl)azo]-3-hydroxy- (9CI); 2-Naphthamide,N-butyl-4-[(2,5-dimethoxyphenyl)azo]-3-hydroxy- (7CI,8CI);N-Butyl-4-[(2,5-dimethoxyphenyl)azo]-3-hydroxynaphthalene-2-carboxamide
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