Acta Cryst. (2010). E66, o2562 [ doi:10.1107/S1600536810036184 ]
Abstract: In the title compound, C14H9Cl2N3O4·CH4O, the dihedral angle between the two benzene rings in the hydrazone molecule is 6.3 (3)°. An intramolecular N-HO hydrogen bond stabilizes the molecular conformation. In the crystal, centrosymmetrically related molecules are linked through intermolecular O-HO and N-HO hydrogen bonds.
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