Used as an ionic liquid in green chemistry applications, particularly as a solvent in organic synthesis and catalysis due to its low volatility and high thermal stability. Facilitates reactions such as alkylation, esterification, and polymerization by enhancing reaction rates and selectivity. Also employed in extraction processes, including desulfurization of fuels and separation of aromatic compounds. Its dual ester and imidazolium functionality allows for tunable solubility, making it suitable for use in electrochemical systems and as a reaction medium in biomass processing.