Used in cell biology research to study phosphoinositide signaling pathways. Serves as a substrate for enzymes like phospholipase C and kinases involved in intracellular signal transduction. Employed in lipid-protein interaction studies to understand how proteins bind to specific phosphoinositides. Commonly used in membrane trafficking and apoptosis research due to its role in regulating cellular processes. Also utilized in reconstitution experiments with artificial membranes to mimic physiological conditions.