Used as a phase-transfer catalyst in organic synthesis, facilitating reactions between compounds in different phases by transferring ions into organic solvents. Commonly applied in alkylation, oxidation, and esterification processes where efficient ion transfer enhances reaction rates and yields. Also utilized in electrochemistry as a component in electrolyte systems to improve conductivity and stability. Its long alkyl chain enhances lipophilicity, making it effective in membrane-related studies and separation techniques.