(2R,3S,4R,5R)-2-(hydroxymethyl)oxane-3,4,5-triol (2R,3S,4R,5R)-2-(hydroxymethyl)tetrahydropyran-3,4,5-triol (2R,3S,4R,5R)-2-methyloltetrahydropyran-3,4,5-triol 492-93-3 1,5-Anhydro-D-mannitol 1,5-Anhydromannitol D-Mannitol, 1,5-anhydro- 1,5-Anhydro-mannitol