Used as a phase-transfer catalyst in organic synthesis, facilitating reactions between compounds in different phases by enhancing reactivity and selectivity. Commonly applied in alkylation, oxidation, and esterification processes. Also serves as a strong base in polymerization reactions, particularly in the production of specialty polymers. Its quaternary ammonium structure makes it effective in catalyzing carbon-carbon bond-forming reactions under mild conditions. Additionally, it finds use in analytical chemistry for derivatization of acidic compounds and in electrochemistry as a component of electrolyte systems.