title: Meranzin hydrate from Muraya paniculata.
abstract: The coumarin ring system in the title compound, C(15)H(18)O(5) [IUPAC name: 8-(2,3-dihydr-oxy-3-methyl-butyl)-7-meth-oxy-2H-1-benzopyran-2-one], isolated from Muraya paniculata, is planar (r.m.s. deviation 0.017 Å). In the crystal, the two hydr-oxy groups are involved in O-H⋯O hydrogen bonding with adjacent mol-ecules, forming a sheet structure.
authors.forename: Euis
authors.initials: E
authors.lastname: Julaeha
authors.forename: Unang
authors.initials: U
authors.lastname: Supratman
authors.forename: Mat Ropi
authors.initials: MR
authors.lastname: Mukhtar
authors.forename: Khalijah
authors.initials: K
authors.lastname: Awang
authors.forename: Seik Weng
authors.initials: SW
authors.lastname: Ng