Used as an ionic liquid in catalytic reactions, particularly in palladium-catalyzed cross-coupling reactions such as Suzuki and Heck reactions. Its stability and low volatility make it suitable as a non-aqueous polar solvent, enhancing reaction efficiency and catalyst recyclability. Also applied in electrochemical systems due to its wide electrochemical window and good ionic conductivity. Commonly employed in green chemistry initiatives where reusable reaction media are preferred to reduce environmental impact.