Used as a deuterated phospholipid in model membrane studies, particularly in neutron scattering and NMR spectroscopy to investigate lipid bilayer structure, dynamics, and interactions with proteins or drugs. Its perdeuterated acyl chains enhance contrast in neutron experiments, allowing precise mapping of membrane components. Commonly employed in the formation of liposomes, supported lipid bilayers, and bicelles for biophysical research. The sodium salt form improves solubility and stability in aqueous buffers, making it suitable for in vitro membrane mimicry systems.

Additionally, it serves as an internal standard in mass spectrometry for accurate quantification of other phospholipids in biological samples, leveraging its isotopic labeling for differentiation without altering chemical behavior.