The molecule is a carbohydrate acid derivative anion obtained by deprotonation of the carboxy, phosphate and diphosphate functions of (Kdo)2-lipid A 1-diphosphate; major species at pH 7.3. It is an anionic phospholipid, a carbohydrate acid derivative anion and a dicarboxylic acid dianion. It is a conjugate base of a (Kdo)2-lipid A 1-diphosphate (E. coli).
(2R,4R,5R,6R)-2-[(2R,4R,5R,6R)-2-carboxylato-6-[(1R)-1,2-dihydroxyethyl]-2-[[(2R,3S,4R,5R,6R)-5-[[(3R)-3-dodecanoyloxytetradecanoyl]amino]-6-[[(2R,3S,4R,5R,6R)-3-hydroxy-5-[[(3R)-3-hydroxytetradecanoyl]amino]-4-[(3R)-3-hydroxytetradecanoyl]oxy-6-[oxido(phosphonatooxy)phosphoryl]oxyoxan-2-yl]methoxy]-3-phosphonatooxy-4-[(3R)-3-tetradecanoyloxytetradecanoyl]oxyoxan-2-yl]methoxy]-5-hydroxyoxan-4-yl]oxy-6-[(1R)-1,2-dihydroxyethyl]-4,5-dihydroxyoxane-2-carboxylate