The molecule is a 1,2-diacyl-sn-glycero-3-phosphocholine having a dodecanoyl group at the 1-position and a pentacosanoyl group at the 2-position. It has a role as an epitope.
2-[[(2R)-3-dodecanoyloxy-2-pentacosanoyloxypropoxy]-hydroxyphosphoryl]oxyethyl-trimethylazanium