Used as a highly efficient basic ionic liquid catalyst in organic synthesis, particularly in Knoevenagel condensations, Michael additions, and transesterification reactions. Its strong basicity and ionic nature enhance reaction rates while allowing for easy separation and reuse. It is also employed in CO₂ capture systems due to its ability to reversibly absorb acidic gases. In analytical chemistry, it serves as a derivatization agent for acidic compounds. Additionally, it finds use in electrochemical applications and as a precursor for synthesizing other functionalized ionic liquids.