2-Hydr-oxy-1-methoxyxanthen-9-one monohydrate

Guangying Chen; Jun Zhao; Changchun Cen; Changri Han; Xinming Song

doi:10.1107/S1600536809039348

2-Hydr-oxy-1-methoxyxanthen-9-one monohydrate

Acta Crystallogr Sect E Struct Rep Online. 2009 Oct 23;65(Pt 11):o2798. doi: 10.1107/S1600536809039348.

Authors

Guangying Chen¹, Jun Zhao, Changchun Cen, Changri Han, Xinming Song

Affiliation

¹ Hainan Provincial Key Laboratory of Tropical Pharmaceutical Herb Chemistry, College of Chemistry & Chemical Engineering, Hainan Normal University, Haikou 571158, People's Republic of China.

Abstract

In the title compound, C(14)H(10)O(4)·H(2)O, isolated from the roots of Calophyllum membranaceum, the xanthene ring system is almost planar (r.m.s. deviation = 0.008 Å). In the crystal structure, inter-molecular O-H⋯O and O-H⋯(O,O) hydrogen bonds connect the mol-ecules.