The molecule is a lipid A derivative, comprising lipid A glycosylated with two 3-deoxy-D-manno-octulosonic acid (KDO) residues and having a diphosphate in place of the phosphate group at position 1 It is a member of lipid As, a dodecanoate ester and a tetradecanoate ester. It derives from a lipid A (E. coli). It is a conjugate acid of a (Kdo)2-lipid A 1-diphosphate(7-) (E. coli).
(2R,4R,5R,6R)-2-[(2R,4R,5R,6R)-2-carboxy-6-[(1R)-1,2-dihydroxyethyl]-2-[[(2R,3S,4R,5R,6R)-5-[[(3R)-3-dodecanoyloxytetradecanoyl]amino]-6-[[(2R,3S,4R,5R,6R)-3-hydroxy-6-[hydroxy(phosphonooxy)phosphoryl]oxy-5-[[(3R)-3-hydroxytetradecanoyl]amino]-4-[(3R)-3-hydroxytetradecanoyl]oxyoxan-2-yl]methoxy]-3-phosphonooxy-4-[(3R)-3-tetradecanoyloxytetradecanoyl]oxyoxan-2-yl]methoxy]-5-hydroxyoxan-4-yl]oxy-6-[(1R)-1,2-dihydroxyethyl]-4,5-dihydroxyoxane-2-carboxylic acid