The molecule is a ketoaldonic acid obtained by oxidation of the 8-hydroxy group of 3-deoxy-alpha-D-manno-oct-2-ulopyranosonic acid to the corresponding aldehyde. It is a ketoaldonic acid and an aldehyde. It is a conjugate acid of a (7R)-6-deoxy-D-manno-oct-7-ulosuronate.
(2R,4R,5R,6S)-2,4,5-trihydroxy-6-[(1S)-1-hydroxy-2-oxoethyl]oxane-2-carboxylic acid