4-Chloro-N′-[(Z)-4-nitrobenzylidene]benzohydrazide monohydrate

In the title compound, C14H10ClN3O3·H2O, the benzohydrazide group is not planar and the molecule exists in a cis configuration with respect to the methylidene unit. The dihedral angle between the two substituted benzene rings is 38.7 (3)°. In the crystal structure, molecules are linked by O—H...O, O—H...N and N—H...O hydrogen bonds into a two-dimensional network parallel to the (100) plane. The crystal structure is further stabilized by weak C—H...O interactions.