4-But­oxy-N′-[1-(4-methyl­phen­yl)ethyl­idene]benzohydrazide

The mol­ecule of the title compound, C₂₀H₂₄N₂O₂, exists in a trans conformation with respect to the C=N bond. The dihedral angle between the benzene rings is 79.0 (1)°. In the crystal, N—H...O hydrogen bonds link the mol­ecules into chains propagating in [001]. Two weak C—H...O inter­actions also occur.