Used as an ionic liquid in various industrial and research applications, particularly in catalysis and electrochemical processes. It serves as a solvent or electrolyte in batteries and fuel cells due to its high ionic conductivity and thermal stability. Additionally, it is employed in organic synthesis as a reaction medium or catalyst, enhancing reaction rates and selectivity. Its sulfopropyl group makes it useful in modifying surfaces or materials for improved hydrophilicity or conductivity. It is also explored in separation technologies, such as extraction processes, due to its ability to interact with different chemical species.