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 where efficient ion transport enhances reaction rates and yields. Also utilized in materials science for surface modification of nanoparticles, improving dispersion stability in non-polar media. Its lipophilic character makes it suitable for membrane studies and electrochemical applications involving ion transport.