Decyltrimethylammonium bromide is widely used as a cationic surfactant in various industrial and laboratory applications. It is commonly employed in the formulation of disinfectants and antiseptics due to its ability to disrupt microbial cell membranes, making it effective against bacteria and fungi. In the textile industry, it serves as a softener and antistatic agent, improving the handling and feel of fabrics. Additionally, it is utilized in the oil and gas sector as a corrosion inhibitor and in enhanced oil recovery processes. Its surfactant properties also make it valuable in the production of emulsions and as a phase transfer catalyst in organic synthesis.