Used as a phase-transfer catalyst in organic synthesis, particularly in alkylation and esterification reactions. Its quaternary ammonium structure enhances solubility and reactivity in both aqueous and organic phases, facilitating efficient ion transfer. Commonly applied in the preparation of pharmaceutical intermediates and fine chemicals where high selectivity and yield are required. Also utilized in electrochemical processes due to its stable cationic nature and good conductivity in non-aqueous media.