Dodecyl Dimethyl Benzyl Ammonium Chloride, commonly known as Benzalkonium Chloride (BKC), is a cationic surfactant and quaternary ammonium compound. It is widely used as a disinfectant, antiseptic, preservative, and conditioner in various industries, including cosmetics, personal care, healthcare, and industrial cleaning. BKC is effective at killing bacteria, fungi, and viruses, making it an essential ingredient in sanitizers, disinfectants, and surface cleaners.