The molecule is a lipid A oxoanion arising from deprotonation of the phosphate OH groups and protonation of the amino group of lipid A 1-(2-aminoethyl diphosphate); major species at pH 7.3. It is a lipid A oxoanion and a lipid A 1-(2-aminoethyl diphosphate) oxoanion. It is a conjugate base of a lipid A 1-(2-aminoethyl diphosphate).
[(2R,3S,4R,5R,6R)-6-[[(2R,3S,4R,5R,6R)-6-[[2-azaniumylethoxy(oxido)phosphoryl]oxy-oxidophosphoryl]oxy-3-hydroxy-5-[[(3R)-3-hydroxytetradecanoyl]amino]-4-[(3R)-3-hydroxytetradecanoyl]oxyoxan-2-yl]methoxy]-5-[[(3R)-3-dodecanoyloxytetradecanoyl]amino]-2-(hydroxymethyl)-4-[(3R)-3-tetradecanoyloxytetradecanoyl]oxyoxan-3-yl] phosphate