Benzalkonium Chloride is an organic salt used in cleaning agents, classified as a quaternary ammonium cationic detergent. It can be used as an antiseptic and preservative in personal care, healthcare, household, pharmaceutical, and industrial products. This is a quaternary ammonium antiseptic and disinfectant with actions and uses similar to those of other cationic surfactants. Benzalkonium Chloride is also used as an antimicrobial preservative for pharmaceutical products. This is the most commonly used antimicrobial preservative.