Used as a phase-transfer catalyst in organic synthesis, particularly in alkylation and esterification reactions. It facilitates the transfer of ions between aqueous and organic phases, improving reaction efficiency and yield. Commonly employed in the preparation of pharmaceuticals and fine chemicals where mild basic conditions and good solubility in organic solvents are required. Also utilized in polymerization processes to control reaction kinetics and in the synthesis of agrochemicals due to its stability and low toxicity profile.