Used primarily as a cationic monomer in the synthesis of water-soluble polymers for applications in water treatment, it enhances the removal of suspended solids and organic matter through flocculation. It is a key component in producing paper wet-strength resins, improving the durability of paper in moist conditions.

Also employed in the formulation of antimicrobial agents due to its ability to disrupt cell membranes, making it effective in disinfectants and preservatives.

Commonly used in cosmetics and personal care products as a conditioning agent in hair and skin formulations.

In the textile industry, it serves as a starting material for producing cationic surfactants or fabric treatments that reduce static electricity and enhance fabric softness.

Additionally, it serves as a reagent in organic synthesis, particularly in quaternization reactions and the preparation of functionalized materials.