The title compound, C(13)H(9)ClN(2)O(3), is almost planar, showing a dihedral angle of 4.63 (6)° between the aromatic ring planes. The nitro group also lies in the plane, the C-C-N-O torsion angle being 6.7 (2)°. There is an intamolecular C-H⋯O hydrogen bond. The crystal structure features N-H⋯O(nitro) hydrogen bonds that link the mol-ecules into zigzag chains extending along [010].