The molecule is a derivative of Kdo2-lipid A having a phosphoethanolamine at position 7 of one of the Kdo residues. It is a member of lipid As, a dodecanoate ester and a tetradecanoate ester. It derives from a (Kdo)2-lipid A (E. coli). It is a conjugate acid of a phosphoethanolamine-Kdo2-lipid A(6-).
(2R,4R,5R,6S)-6-[(1R)-1-[2-aminoethoxy(hydroxy)phosphoryl]oxy-2-hydroxyethyl]-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-5-[[(3R)-3-hydroxytetradecanoyl]amino]-4-[(3R)-3-hydroxytetradecanoyl]oxy-6-phosphonooxyoxan-2-yl]methoxy]-3-phosphonooxy-4-[(3R)-3-tetradecanoyloxytetradecanoyl]oxyoxan-2-yl]methoxy]-5-hydroxyoxan-4-yl]oxy-4,5-dihydroxyoxane-2-carboxylic acid