(3R,4S,5R)-3,4,5-trihydroxyoxan-2-one (3R,4S,5R)-3,4,5-trihydroxytetrahydropyran-2-one (3R,4S,5R)-3,4,5-trihydroxy-2-tetrahydropyranone D-Xylonolactone (3R,4S,5R)-3,4,5-trihydroxytetrahydro-2H-pyran-2-one CHEBI:15867 C02266 D-Xylono-1,5-lactone