Used as a synthetic phospholipid in liposome formulations, particularly in drug delivery systems where membrane fluidity and stability are critical. It plays a role in mimicking biological membranes due to its structural similarity to natural phospholipids, supporting the development of lipid nanoparticles for therapeutic applications. Commonly found in research settings for studying membrane dynamics, cell signaling, and as a component in pulmonary surfactant models. Its sodium salt form enhances solubility and handling in aqueous-based formulations.