The molecule is the sodium salt of alpha-Kdo1Me-(2->8)-alpha-Kdo-OAll, a disaccharide derivative consisting of two 3-deoxy-alpha-D-manno-oct-2-ulopyranonosyl units joined via an alpha-(2->8)-linkage with an O-allyl group at the anomeric centre and with the carboxy group of the residue at the non-reducing end methyl-esterified. It contains an alpha-Kdo1Me-(2->8)-alpha-Kdo-OAll(1-).
sodium;(2R,4R,5R,6R)-6-[(1R)-2-[(2R,4R,5R,6R)-6-[(1R)-1,2-dihydroxyethyl]-4,5-dihydroxy-2-methoxycarbonyloxan-2-yl]oxy-1-hydroxyethyl]-4,5-dihydroxy-2-prop-2-enoxyoxane-2-carboxylate