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N,N'-naphthalene-1,5-diylbis[3-hydroxy-4-[(2-methoxy-4-nitrophenyl)azo]naphthalene-2-carboxamide]  Structure

N,N'-naphthalene-1,5-diylbis[3-hydroxy-4-[(2-methoxy-4-nitrophenyl)azo]naphthalene-2-carboxamide]