(3S,4R,5S)-2-(hydroxymethyl)oxane-2,3,4,5-tetrol (3S,4R,5S)-2-(hydroxymethyl)tetrahydropyran-2,3,4,5-tetrol (3S,4R,5S)-2-methyloltetrahydropyran-2,3,4,5-tetrol ST075002 C00247 L-xylo-Hexulose