title: 6-Hydroxy-methyl-4-meth-oxy-2H-pyran-2-one (Opuntiol).
abstract: The title compound, C(7)H(8)O(4), isolated from Opuntia dillenii Haw (Cacta-ceae), is almost planar [maximum deviation of 0.027 (2) Å] except for the H atoms of the methylene and methyl groups. The crystal packing is stabilized by C-H⋯O and O-H⋯O inter-molecular hydrogen bonds, resulting in the formation of a three-dimensional network.
authors.forename: Muhammad Athar
authors.initials: MA
authors.lastname: Abbasi
authors.forename: Tayyaba
authors.initials: T
authors.lastname: Shahzadi
authors.forename: Mehmet
authors.initials: M
authors.lastname: Akkurt
authors.lastname: Aziz-Ur-Rehman
authors.forename: Tauheeda
authors.initials: T
authors.lastname: Riaz