title: 1-(3-Chloro-phen-yl)-5-(2,4-di-hydroxy-benzo-yl)pyridin-2(1H)-one.
abstract: The chloro-phenyl group of the title compound, C18H12ClNO4, is disordered over two orientations with occupancies of 0.331 (8) and 0.669 (8). An intra-molecular hydrogen bond is formed between a hy-droxy group and the acyclic carbonyl group. In the crystal, molecules are linked into chains along [110] by O-H⋯O and C-H⋯O hydrogen bonds, forming a ladder motif.
authors.affiliation: The First Affiliated Hospital of Xinxiang Medical University, Weihui 453100, Henan Province, People's Republic of China.
authors.forename: Fang
authors.initials: F
authors.lastname: Ren
authors.forename: Guifeng
authors.initials: G
authors.lastname: Li
authors.forename: Quanying
authors.initials: Q
authors.lastname: Zhang
authors.forename: Jinhua
authors.initials: J
authors.lastname: Yao
authors.forename: Xuli
authors.initials: X
authors.lastname: Zhang