(3R,4R,5S,6R)-6-(hydroxymethyl)oxane-2,3,4,5-tetrol (3R,4R,5S,6R)-6-(hydroxymethyl)tetrahydropyran-2,3,4,5-tetrol (3R,4R,5S,6R)-6-methyloltetrahydropyran-2,3,4,5-tetrol 2595-97-3 CHEBI:4093 C01487 nchembio828-comp7