Used as a cationic surfactant in hair conditioners and skin care products to improve softness and reduce static. Acts as a biocide in water treatment systems by disrupting microbial cell membranes. Employed in laboratories for DNA extraction due to its ability to precipitate nucleic acids. Used as a templating agent or dispersant in the synthesis of nanomaterials, such as ordered mesoporous silica. Also utilized in the formulation of disinfectants and sanitizers for surfaces in healthcare and food processing environments.