3,5-Dihydroxy-N′-[(2-hydroxy-1-naphthyl)methylene]benzohydrazide

Abstract

In the title compound, C18H14N2O4, the dihedral angle between the benzene ring and the naphthyl ring system is 10.1 (2)°. The molecule is nearly planar, with a mean deviation from the plane of 0.141 (2) Å for 24 non-H atoms. An intramolecular O—H...N hydrogen bond forms a pseudo-6-membered ring and the molecules are linked into sheets by intermolecular N—H...O and O—H...O hydrogen bonds.