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 used in various industrial applications including electrolytes in batteries and solvents in chemical reactions. Additionally, it serves as a stabilizer in the production of certain polymers and as a reagent in the synthesis of pharmaceuticals. Its role in enhancing the efficiency of chemical processes makes it valuable in both research and industrial settings.