Dodecyltrimethylammonium chloride is a cationic surfactant widely used across multiple industries. In personal care, it is added to hair conditioners and shampoos to enhance softness and manageability by reducing static and tangling, and serves as an antistatic agent in fabric softeners to improve fabric texture. In biotechnology, it functions as a disinfectant and antiseptic by disrupting microbial cell membranes, effective against bacteria and fungi. It is also employed in cleaning products such as soaps and dishwashing liquids for efficient grease and dirt removal. In the textile industry, it aids in dyeing and fabric softening. For paper production, it promotes fiber dispersion and increases paper strength. In agriculture, it is incorporated into pesticides to improve coating and active ingredient distribution on plant leaves. Additionally, in the oil and gas sector, it acts as a corrosion inhibitor, and in water treatment, it controls microbial growth. Its versatility makes it valuable in diverse applications.