title: N'-(2,3-Dimethoxy-benzyl-idene)-2,4-dihydroxy-benzohydrazide.
abstract: In the title compound, C(16)H(16)N(2)O(5), the dihedral angle between the two benzene rings is 8.5 (3)° and the mol-ecule adopts an E configuration with respect to the C=N bond. There is an intra-molecular N-H⋯O hydrogen bond in the mol-ecule, which generates an S(6) ring. In the crystal, mol-ecules are linked through inter-molecular O-H⋯O hydrogen bonds, forming layers parallel to the bc plane.
authors.affiliation: Department of Chemistry and Life Science, Chuzhou University, Chuzhou, Anhui 239000, People's Republic of China.
authors.forename: You-Yue
authors.initials: YY
authors.lastname: Han
authors.forename: Qiu-Rong
authors.initials: QR
authors.lastname: Zhao