Used as a lipid-based excipient in drug delivery systems, particularly in the formulation of liposomes and lipid nanoparticles (LNPs). Its structure supports membrane fluidity and stability, making it ideal for encapsulating therapeutic agents such as mRNA, siRNA, and other nucleic acids. Commonly applied in gene therapy and vaccine development due to its biocompatibility and ability to fuse with cell membranes, enhancing intracellular delivery. Also utilized in research settings to study membrane dynamics and lipid-lipid interactions in model bilayers.