Triundecylamine is primarily used as a surfactant and corrosion inhibitor in various industrial applications. It is effective in formulations for lubricants and metalworking fluids, where it helps reduce friction and protect metal surfaces from wear and corrosion. In the oil and gas industry, it is utilized as an additive in drilling fluids to enhance performance and stability. Additionally, triundecylamine serves as a chemical intermediate in the synthesis of other compounds, particularly in the production of quaternary ammonium salts, which are widely used in disinfectants and fabric softeners. Its amphiphilic nature also makes it suitable for use in emulsion formulations and as a dispersing agent in coatings and paints.