(E)-1-(2,4-Dinitro­phen­yl)-2-[1-(3-nitro­phen­yl)ethyl­idene]hydrazine

In the asymmetric unit of the title compound, C₁₄H₁₁N₅O₆, there are three crystallographically independent mol­ecules with similar conformations but some differences in bond angles. The mol­ecules are slightly twisted with the dihedral angles between the benzene rings being 10.02 (14), 8.41 (15) and 1.40 (14)°. In each mol­ecule, an intra­molecular N—H...O hydrogen bond generates an S(6) ring motif. In the crystal, mol­ecules are linked by weak C—H...O inter­actions into a three-dimensional network. π–π inter­actions with centroid–centroid distances of 3.5635 (17)–3.8273 (18) Å are observed.