N′-(2,4-Dimethoxybenzylidene)-3,4,5-trihydroxybenzohydrazide ethanol solvate

The title compound, C16H16N2O6·C2H5OH, was synthesized from 3,4,5-trihydroxybenzoylhydrazide and 2,4-dimethoxybenzaldehyde in ethanol. The compound is not planar, with the two aromatic planes of the two aromatic rings twisted by 15.6 (1)°. The hydroxy groups are involved in both intramolecular O—H⋯O and intermolecular O—H⋯N and O—H⋯O hydrogen bonds and a C—H⋯O interaction also occurs.