Used as a biocide in water treatment systems, particularly in cooling towers and industrial water circuits, to control microbial growth including bacteria, algae, and fungi. Its dual quaternary ammonium structure enhances membrane disruption in microorganisms, making it effective at low concentrations. Also employed as a disinfectant in oilfield water systems to prevent biofouling and souring caused by sulfate-reducing bacteria. Additionally, it serves as an intermediate in the synthesis of specialty surfactants and corrosion inhibitors due to its long hydrocarbon chain and reactive ammonium sites.