Geometric parameters of the title compound, C(14)H(12)N(2)O(4), are in the usual ranges. The dihedral angle between the two aromatic rings is 28.9 (1)°. The nitro group is twisted by 40.2 (1)° out of the plane of the aromatic ring to which it is attached. The crystal structure is stabilized by an N-H⋯O hydrogen bond.