3-Penta­none 2,4-dinitro­phenyl­hydrazone

Crystals of the title compound, C(11)H(14)N(4)O(4), were obtained from a condensation reaction of 2,4-dinitro­phenyl­hydrazine and 3-penta­none. In the crystal structure, the mol­ecule, except one methyl group, displays a nearly planar structure. The imino group links to the adjacent nitro group via intra­molecular hydrogen bonding. The partially overlapped arrangement and face-to-face separation of 3.410 (9) Å between parallel benzene rings indicate the existence of π–π stacking between adjacent mol­ecules. The crystal structure also contains weak inter­molecular C—H⋯O hydrogen bonding.