title: 4-Amino-8-cyclo-pent-yloxy-7-meth-oxy-2H-chromen-2-one monohydrate.
abstract: The asymmetric unit of the title compound, C(15)H(17)NO(4)·H(2)O, contains two organic mol-ecules with marginal differences between them and two water molecules. The chromine rings in both mol-ecules are essentially planar, with maximum deviations of 0.012 (2) and 0.060 (2) Å. The five-membered cyclo-pentane rings adopt envelope conformations in both mol-ecules. In the crystal, the components are linked by N-H⋯O, O-H⋯O and C-H⋯O hydrogen bonds, resulting in a three-dimensional network.
authors.affiliation: Department of Biology and Chemistry, Hunan University of Science and Engineering, Yongzhou Hunan 425100,  People's Republic of China.
authors.forename: Man-Hua
authors.initials: MH
authors.lastname: Ding
authors.forename: Xiao-Ping
authors.initials: XP
authors.lastname: Jiang