Used as a synthetic phospholipid in the formulation of liposomes for drug delivery systems, particularly in targeted therapies and controlled release applications. Its defined acyl chain composition enhances membrane stability and influences fusion properties, making it valuable in pulmonary surfactant research and in vitro models of cell membranes. Commonly employed in studies involving membrane protein function and lipid-protein interactions due to its negative charge and structural consistency. Also utilized in cosmetic and pharmaceutical formulations to improve biocompatibility and encapsulation efficiency of active ingredients.