1,5-Bis(2-hydroxy-3-methoxybenzylidene)carbonohydrazide methanol 0.47-solvate

In the title compound, C17H18N4O5·0.47CH3OH, the virtually planar (r.m.s. deviation = 0.128 Å) carbonohydrazide molecule is located on a twofold axis and conformation of its C=N bonds is E. There are short intramolecular O—H...N hydrogen bonds between the hydroxy groups and hydrazide N atoms. In the crystal, bifurcated N—H...(O,O) hydrogen bonds assemble the carbonohydrazide molecules into a three-dimensional network. There are C2 symmetric voids in this network, 47% of which are occupied by disordered methanol molecules.