CTAB is widely used as a cationic surfactant in various applications. It is commonly employed in DNA extraction and purification processes, where it helps to break down cell membranes and precipitate nucleic acids. In the cosmetic industry, CTAB serves as an emulsifier and conditioning agent in hair care products, providing smoothness and manageability. It is also utilized in the synthesis of nanoparticles, acting as a stabilizing agent to control particle size and morphology. Additionally, CTAB finds application in the textile industry as a softener and antistatic agent, enhancing fabric properties. Its antimicrobial properties make it useful in disinfectants and sanitizers for surface cleaning.