4-Hydroxy-N′-(3,5-dichloro-2-hydroxybenzylidene)benzohydrazide

In the title compound, C14H10Cl2N2O3, the dihedral angle between the two benzene rings is 5.1 (2)°. The molecule adopts an E configuration with respect to the C=N bond and an intramolecular O—H...N interaction is present. In the crystal structure, molecules are linked through intermolecular N—H...O and O—H...O hydrogen bonds.