title: N'-(3,4-Dihydroxy-benzyl-idene)acetohydrazide monohydrate.
abstract: In the title compound, C(9)H(10)N(2)O(3)·H(2)O, the Schiff base mol-ecule is approximately planar, the dihedral angle between the benzene and acetohydrazide planes being 5.40 (7)°. An intra-molecular O-H⋯O hydrogen bond is observed. In the crystal, mol-ecules are linked into a two-dimensional network parallel to (100) by O-H⋯O, N-H⋯O, O-H⋯N and C-H⋯O hydrogen bonds, and by π-π inter-actions between symmetry-related benzene rings [centroid-centroid distance = 3.543 (2) Å].
authors.forename: Lu-Ping
authors.initials: LP
authors.lastname: Lv
authors.forename: Tie-Ming
authors.initials: TM
authors.lastname: Yu
authors.forename: Wen-Bo
authors.initials: WB
authors.lastname: Yu
authors.forename: Wei-Wei
authors.initials: WW
authors.lastname: Li
authors.forename: Xian-Chao
authors.initials: XC
authors.lastname: Hu