Used as a biocide and antimicrobial agent in industrial water treatment systems to control microbial growth. It is effective in preventing biofilm formation in cooling towers and paper mill systems. Also serves as a corrosion inhibitor when formulated with other chemicals. Commonly utilized as a phase transfer catalyst in organic synthesis, facilitating reactions between compounds in different phases. Its long hydrocarbon chain enhances solubility in non-polar solvents, making it suitable for use in fuel and lubricant additives to improve stability and performance.