Used primarily as a biocide and antiseptic in disinfectants and sanitizing solutions. Effective against a broad spectrum of microorganisms, including bacteria and fungi. Commonly found in hospital-grade cleaners and industrial water treatment systems to control microbial growth. Also serves as a surfactant in some formulations, enhancing cleaning and wetting properties. Its cationic nature allows it to disrupt cell membranes of microbes, making it a potent antimicrobial agent. Used in low concentrations in some personal care products for its antiseptic qualities.