(E)-4-Hydroxy-N'-(2-hydroxy-4-methoxybenzylidene)benzohydrazide

In the title compound, C15H14N2O4, the dihedral angle between the benzene rings is 40.59 (4)degrees and an intramolecular O-H center dot center dot center dot N hydrogen bond generates an S(6) ring. In the crystal, N-H center dot center dot center dot O, O-H center dot center dot center dot O and C-H center dot center dot center dot O interactions link the molecules into a three-dimensional network.