The molecule is a tetra-acylated lipid A produced by E. coli as an intermediate in the lipid A biosynthetic pathway. It is a conjugate acid of a lipid IVA(4-).
[(2R,3S,4R,5R,6R)-3-hydroxy-2-[[(2R,3R,4R,5S,6R)-6-(hydroxymethyl)-3-[[(3R)-3-hydroxytetradecanoyl]amino]-4-[(3R)-3-hydroxytetradecanoyl]oxy-5-phosphonooxyoxan-2-yl]oxymethyl]-5-[[(3R)-3-hydroxytetradecanoyl]amino]-6-phosphonooxyoxan-4-yl] (3R)-3-hydroxytetradecanoate