Used as a surfactant and biocide in industrial water treatment systems due to its antimicrobial properties. It helps control microbial growth in cooling towers, paper mill systems, and metalworking fluids. Also serves as an intermediate in the synthesis of quaternary ammonium compounds, which are widely used in fabric softeners and disinfectants. Its cationic nature allows it to disrupt cell membranes of microorganisms, making it effective for preservation and sanitation applications.