Used as a cationic surfactant in disinfectants and antiseptics due to its ability to disrupt microbial cell membranes. Commonly found in throat lozenges and mouthwashes for its antimicrobial properties. Also serves as a phase transfer agent in organic synthesis. Employed in the formulation of fabric softeners and hair conditioners for its surface-active and conditioning effects. Its positive charge allows strong interaction with negatively charged surfaces, enhancing its effectiveness in cleaning and biocidal applications.