Application： 18:1-16:0 PC (1-oleoyl-2-palmitoyl-sn-glycero-3-phosphocholine) may be used: 1）as a lipid standard in ultra-performance liquid chromatography (UPLC) analyses； 2）as a component in liposomes to study the cell proliferation of several cell lines； 3）in liposomes for cross-linking experiment； 1-Oleoyl-2-palmitoyl-sn-glycero-3-phosphocholine is used in the pharmaceutical formulation for the prodn. of antiviral medication effective for dengue and zika Explanation： Phosphatidylcholines (PCs) are mainly located on the outer leaflets of the biological membrane bilayer;