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 nucleophilic substitutions, oxidations, and esterifications where it enhances reaction rates and yields. Also utilized in the preparation of quaternary ammonium compounds for surfactant and antimicrobial agent production. Its long alkyl chains provide good solubility in nonpolar media, making it effective in biphasic systems.