Used as a phase transfer catalyst in organic synthesis, facilitating reactions between compounds in different phases. It is also employed in the preparation of ionic liquids, which are utilized in various industrial applications such as electrolytes in batteries, solvents in chemical reactions, and in separation processes. Additionally, it serves as a stabilizer in polymer production and as a corrosion inhibitor in metal treatment processes. Its role in enhancing reaction efficiency and selectivity makes it valuable in pharmaceutical and fine chemical manufacturing.