Used as a phase-transfer catalyst in organic synthesis, facilitating reactions between reagents in different phases by transferring ions into organic solvents. Commonly applied in alkylation, oxidation, and nucleophilic substitution reactions. Also serves as a stabilizing agent for nanoparticles due to its surfactant-like properties. Its lipophilic cation allows integration into membrane systems, making it useful in studies involving mitochondria or cellular uptake mechanisms.