1-(4-{[(E)-3-Ethoxy-2-hydroxybenzylidene]amino}phenyl)ethanone oxime

In the title compound, C17H18N2O3, the benzene rings form a dihedral angle of 3.34 (2)°. There is a strong intramolecular O—H...N hydrogen bonds (which induces planarity of the structure). In the crystal, molecules are linked by pairs of O—H...N hydrogen bonds, forming inversion dimers.