Used as a phase-transfer catalyst in organic synthesis, facilitating reactions between reagents in different phases by improving solubility and reactivity. Commonly applied in alkylation, esterification, and oxidation processes where efficient ion transfer is required. Also utilized in the preparation of specialty surfactants and ionic liquids due to its stable ammonium structure and good thermal stability. Its polar nature makes it suitable for use in electrochemical applications and as a buffering agent in certain industrial formulations.