4-But-oxy-N'-[1-(4-methyl-phen-yl)ethyl-idene]benzohydrazide.

The mol-ecule of the title compound, C(20)H(24)N(2)O(2), 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 mol-ecules into chains propagating in [001]. Two weak C-H⋯O inter-actions also occur.

Crystal structure of 2,3-diaza-1,3-diphenylpropene.

The title compound crystallizes in monoclinic space group P2(1)/c. There are two molecules in the asymmetric unit. While one of these molecules is in a general position, the other is in disordered position. The angle between the directions of the molecules in the asymmetric unit is 87.5(1) degrees.