Used as an ionic liquid in green chemistry applications, particularly as a catalyst or solvent in organic synthesis. Its low volatility and high thermal stability make it suitable for reactions requiring elevated temperatures without decomposition. Commonly applied in esterification, transesterification, and CO2 capture processes due to its ability to stabilize intermediates and enhance reaction selectivity. Also explored in electrochemical systems such as batteries and fuel cells where ionic conductivity and non-flammability are advantageous.