title: β-d-Gulose.
abstract: The title compound, C6H12O6, a C-3 position epimer of d-galactose, crystallized from an aqueous solution, was confirmed as β-d-pyran-ose with a (4) C 1 (C1) conformation. In the crystal, O-H⋯O hydrogen bonds between the hy-droxy groups at the C-1 and C-6 positions connect mol-ecules into a tape structure with an R 3 (3)(11) ring motif running along the a-axis direction. The tapes are connected by further O-H⋯O hydrogen bonds, forming a three-dimensional network.
authors.affiliation: Department of Advanced Materials Science, Faculty of Engineering, Kagawa University, 2217-20 Hayashi-cho, Takamatsu, Kagawa 761-0396, Japan.
authors.forename: Tomohiko
authors.initials: T
authors.lastname: Ishii
authors.affiliation: Department of Advanced Materials Science, Faculty of Engineering, Kagawa University, 2217-20 Hayashi-cho, Takamatsu, Kagawa 761-0396, Japan.
authors.forename: Shunsuke
authors.initials: S
authors.lastname: Ohga
authors.affiliation: Department of Applied Biological Science, Faculty of Agriculture, Kagawa University, 2393 Ikenobe, Kagawa 761-0795, Japan.
authors.forename: Kazuhiro
authors.initials: K
authors.lastname: Fukada
authors.affiliation: Department of Applied Biological Science, Faculty of Agriculture, Kagawa University, 2393 Ikenobe, Kagawa 761-0795, Japan.
authors.forename: Kenji
authors.initials: K
authors.lastname: Morimoto
authors.affiliation: Department of Chemistry, Faculty of Science, Okayama University of Science, 1-1 Ridaicho, Kita-ku, Okayama 700-0005, Japan.
authors.forename: Genta
authors.initials: G
authors.lastname: Sakane