4-Nitro-N-[4-(4-nitro­phen­oxy)phen­yl]benzamide

The title compound, C19H13N3O6, is a precursor for the synthesis of polymers. The mol­ecule is not planar and the terminal benzene rings are almost perpendicular to each other, at an angle of 85.19 (7)°. In the crystal structure, the mol­ecules are linked by C—H⋯O and N—H⋯O inter­molecular hydrogen bonds to form a one-dimensional network parallel to the bc face.