Widely used as a biocide in industrial water treatment systems, effectively controlling microbial growth in cooling towers and paper mill systems. It disrupts cell membranes of microorganisms, providing strong antimicrobial activity against bacteria, fungi, and algae. Commonly formulated in disinfectants and sanitizers for use in healthcare, food processing, and household cleaning products. Also employed as a phase transfer catalyst in organic synthesis, facilitating reactions between reagents in different phases. Its surfactant properties make it useful in fabric softeners and antistatic agents, where it imparts softness and reduces static cling in textiles. Stable under a wide range of pH and temperatures, making it suitable for harsh industrial environments.