Used as a probe in lipid research to study cell membrane dynamics and lipid-protein interactions. Its biotinylated acyl chain (at the sn-2 position) allows for streptavidin-based detection and isolation, making it valuable in tracking lipid trafficking, endocytosis, and signaling pathways. Commonly applied in fluorescence microscopy (using fluorescently labeled streptavidin), flow cytometry, and affinity purification assays. The oleoyl chain at sn-1 provides fluidity similar to natural phospholipids, enabling integration into lipid bilayers for accurate membrane modeling.