title: 5,6,7,5'-Tetra-meth-oxy-3',4'-methyl-ene-dioxy-flavone monohydrate.
abstract: THE TITLE COMPOUND [SYSTEMATIC NAME: 5,6,7-trimeth-oxy-2-(7-meth-oxy-1,3-dihydro-2-benzofuran-5-yl)-4H-chromen-4-one monohydrate], C(20)H(18)O(8)·H(2)O, was isolated from the popular Chinese medicinal plant Entada phaseoloides. In the crystal, inversion-related mol-ecules are joined by pairs of weak C-H⋯O hydrogen bonds. The dimers are further inter-connected by a bridging water mol-ecule via weak C-H⋯O(water) and pairs of (O-H)(water)⋯O hydrogen bonds into a linear tape running parallel to the b axis.
authors.forename: Hou-Jin
authors.initials: HJ
authors.lastname: Li
authors.forename: Da-Lang
authors.initials: DL
authors.lastname: Zhou
authors.forename: Ting-Juan
authors.initials: TJ
authors.lastname: Xu
authors.forename: Chi-Keung
authors.initials: CK
authors.lastname: Lam
authors.forename: Wen-Jian
authors.initials: WJ
authors.lastname: Lan