Acta Crystallographica Section E (Apr 2010)
(E)-N′-(2,5-Dimethoxybenzylidene)-2,4-dihydroxybenzohydrazide
Abstract
In the title compound, C16H16N2O5, the dihedral angle between the two benzene rings is 4.2 (2)° and an intramolecular O—H...O hydrogen bond generates an S(6) ring. In the crystal, molecules are linked into layers lying parallel to the bc plane by O—H...O and N—H...O hydrogen bonds.