Used as a phase transfer catalyst in organic synthesis, facilitating reactions between reagents in different phases by transferring ions into organic solvents. Commonly applied in oxidation, reduction, and alkylation processes. Also serves as a biocide or antimicrobial agent in industrial water systems due to its ability to disrupt microbial cell membranes. Employed in the preparation of nanomaterials and as a surfactant in specialty formulations where high lipophilicity is required. Its long alkyl chains make it effective in extraction processes and membrane studies.