(Z)-3-[2-(2,4-Di­nitro­phen­yl)hydrazin-1-yl­idene]isobenzo­furan-1(3H)-one di­chloro­methane hemisolvate

In the title compound, 2C₁₄H₈N₄O₆·CH₂Cl₂, the di­chloro­methane solvent mol­ecule resides on a crystallographic twofold axis. The mean plane of the phthaliso­imide ring is oriented at a dihedral angle of 32.93 (12)° with respect to the nitro-substituted benzene ring. An intra­molecular N—H...O hydrogen bond occurs. The crystal packing features a short Cl...O halogen-bond inter­action [3.093 (3) Å].