title: 2-Hy-droxy-N'-(5-hy-droxy-2-nitro-benzyl-idene)-3-methyl-benzohydrazide.
abstract: The title compound, C(15)H(13)N(3)O(5), was prepared by condensing 5-hy-droxy-2-nitro-benzaldehyde and 2-hy-droxy-3-methyl-benzohydrazide in methanol. The two benzene rings make a dihedral angle of 3.9 (3)°. An intra-molecular O-H⋯O hydrogen bond is observed. The crystal structure is stabilized by inter-molecular O-H⋯O and N-H⋯O hydrogen bonds, and C-H⋯O and π-π inter-actions [centroid-centroid distances = 3.5658 (17)-3.9287 (19) Å].
authors.affiliation: Department of Chemistry, Hebei Normal University of Science and Technology, Qinhuangdao 066600,  People's Republic of China.
authors.forename: Zhao-Fu
authors.initials: ZF
authors.lastname: Zhu
authors.forename: Li-Juen
authors.initials: LJ
authors.lastname: Shao
authors.forename: Xi-Hai
authors.initials: XH
authors.lastname: Shen