(E)-N′-[(2-Hydroxynaphthalen-1-yl)methylidene]nicotinohydrazide

In the molecule of the title compound, C17H13N3O2, the naphthyl ring system and the pyridine ring form a dihedral angle of 12.2 (3)°. An intramolecular O—H...N hydrogen bond generates a six-membered ring with an S(6) ring motif. This also contributes to the relative overall near planarity of the molecule [r.m.s. deviation of all 22 non-H atoms = 0.107 (5) Å]. In the crystal, molecules are linked through intermolecular N—H...N hydrogen bonds, forming chains along the a axis.