(3S,4R,5R)-3,4,5,6-tetrahydroxy-2-oxohexanoate (3S,4R,5R)-3,4,5,6-tetrahydroxy-2-oxo-hexanoate (3S,4R,5R)-3,4,5,6-tetrahydroxy-2-keto-hexanoate CHEBI:16808 D-arabino-hex-2-ulosonate