2,2′-[1,1′-(Heptane-1,7-diyldioxy­dinitrilo)diethyl­idyne]di-1-naphthol

The mol­ecule of the title compound, C(31)H(34)N(2)O(4), adopts an L-shaped configuration, in which the naphthalene units are approximately perpendicular, making a dihedral angle of 87.89 (3)°. Intramolecular H-bonds are formed between the OH substituents and the N atoms at each end of the molecule. In the crystal structure, each mol­ecule links six other mol­ecules into an infinite three-dimensional network supra­molecular structure, which is built from one-dimensional zigzag chains via weak C—H⋯π stacking and inter­molecular C—H⋯O hydrogen bonds.