Used as a highly effective catalyst in organic synthesis, particularly in palladium-catalyzed cross-coupling reactions such as Suzuki-Miyaura and Heck reactions. Its bulky imidazolium structure enhances catalyst stability and promotes high turnover numbers under mild conditions. Widely applied in pharmaceutical and fine chemical industries for constructing carbon-carbon bonds due to its excellent thermal stability and solubility in polar and non-polar solvents. Also serves as a precursor for N-heterocyclic carbene ligands in transition metal catalysis.