(E)-N′-(2,3-Dihydroxybenzylidene)-4-methoxybenzohydrazide

The molecule of the title benzohydrazide derivative, C15H14N2O4, is twisted and exists in a trans conformation with respect to the C=N double bond. The dihedral angle between the benzene rings is 56.86 (9)degrees and the C atom of the methoxy group deviates slightly [C-O-C-C = -10.4 (3)degrees] from its attached benzene ring. An intramolecular O-H center dot center dot center dot N hydrogen bond generates an S(6) ring. In the crystal, molecules are linked by N-H center dot center dot center dot O and bifurcated N-H center dot center dot center dot(O,O) hydrogen bonds, as well as weak C-H center dot center dot center dot O interactions, into two-dimensional networks lying parallel to the bc plane. A weak C-H center dot center dot center dot pi interaction also occurs.