Used as a phase-transfer catalyst in organic synthesis, particularly in alkylation and oxidation reactions. Facilitates the transfer of ions between aqueous and organic phases, enhancing reaction rates and selectivity. Commonly applied in the preparation of fine chemicals and pharmaceutical intermediates where efficient anion activation is required. As a quaternary ammonium compound, it also serves as a cationic surfactant, disinfectant, and biocide in industrial applications, including cleaning products, sanitizers, and preservatives across various industries, due to its stability and solubility in biphasic systems.