Used as an ionic liquid in catalytic reactions, particularly in esterification and transesterification processes for biodiesel production. Its low volatility and high thermal stability make it suitable as a green solvent in organic synthesis. Commonly employed in extraction processes, including removal of sulfur compounds from fuels. Also applied in electrochemical systems such as batteries and capacitors due to its good ionic conductivity. Shows potential in biomass processing for dissolving cellulose and lignin in bio-based material production.