N′-[(E)-4-Benz­yloxy-2-hy­droxy­benzyl­idene]-4-nitro­benzohydrazide di­methyl­formamide monosolvate

The title compound, C₂₁H₁₇N₃O₅·C₃H₇NO, exists in an E conformation with respect to the azomethine double bond of the hydrazide mol­ecule. This mol­ecule contains an intra­molecular O—H...N hydrogen bond, while an inter­molecular N—H...O hydrogen bond links the hydrazide to the formamide mol­ecule of solvation. Nonclassical C—H...O inter­molecular hydrogen bonds build up a supra­molecular architecture, together with two C—H...π inter­actions and a weak π–π inter­action, with a centroid–centroid distance of 3.650 (13) Å.