2-Ethoxy-4-{[(2-nitrophenyl)hydrazono]methyl}phenol

The title compound, C15H15N3O4, a Schiff base, was obtained from a condensation reaction of 3-ethoxy-4-hydroxybenzaldehyde and 2-nitrophenylhydrazine. The molecule is approximately planar, the largest deviation from the mean plane being 0.1449 (16) angstrom. An intramolecular N-H center dot center dot center dot O interaction is also present. In the crystal, intermolecular O-H center dot center dot center dot O hydrogen bonds link the molecules, forming chain parallel to the b axis.