N′-[(1E,2E)-1-(2-Phenyl­hydrazin-1-yl­idene)-1-(phenyl­sulfon­yl)propan-2-yl­idene]benzohydrazide

The configuration about each C=N bond in the title compound, C(22)H(20)N(4)O(3)S, is E. While to a first approximation the phenyl­hydrazin-1-yl­idene and benzohydrazide residues are coplanar, in part due to the presence of an intra­molecular N—H⋯N hydrogen bond, significant twists are evident in the orientations of the hydrazine [N—N—C—C torsion angle = −170.74 (11)°] and benzoyl benzene [N—C—C—C = −21.72 (18)°] rings. The sulfonyl benzene ring occupies a position almost normal to the rest of the mol­ecule [C—S—C—N = −92.28 (10)°]. Centrosymmetric aggregates mediated by pairs of hydrazide–sulfonyl N—H⋯O hydrogen bonds are the predominant packing motif in the crystal. These are connected into linear supra­molecular chains via C—H⋯O inter­actions which are, in turn, linked into layers in the ac plane via C—H⋯π inter­actions. Connections between layers along the b-axis direction are of the π–π type and occur between centrosymmetrically related hydrazine-bound benzene rings [centroid–centroid separation = 3.7425 (9) Å].