Used as a phase-transfer catalyst in organic synthesis, particularly in fluorination reactions where it facilitates the transfer of fluoride ions into organic phases. Its lipophilic octyl chain enhances solubility in nonpolar solvents, making it effective in biphasic systems. Commonly applied in the preparation of fluorinated pharmaceuticals and agrochemicals due to its ability to stabilize reactive intermediates and improve reaction selectivity. Also employed in electrochemical applications as an electrolyte component in specialized sensors and batteries where thermal and chemical stability are required.