SMILES: CCCCCCCCCCCCCCCC(=O)O[C@H](CCCCCCCCCCC)CC(=O)N[C@@H]1[C@H]([C@@H]([C@H](O[C@@H]1OP(=O)([O-])O[C@@H]2[C@@H]([C@H]([C@H](CO2)[NH3+])O)O)CO[C@H]3[C@@H]([C@H]([C@@H]([C@H](O3)CO)OP(=O)([O-])[O-])OC(=O)C[C@@H](CCCCCCCCCCC)O)NC(=O)C[C@@H](CCCCCCCCCCC)O)O)OC(=O)C[C@@H](CCCCCCCCCCC)O
Description: The molecule is a lipid A oxoanion arising from deprotonation of the phosphate OH groups and protonation of the amino group of lipid IIB; major species at pH 7.3. It is a conjugate base of a lipid IIB.