Used as a versatile catalyst precursor in organic synthesis, particularly in copper-catalyzed coupling reactions such as C–N, C–O, and C–S bond formations. It is effective in Ullmann-type reactions and click chemistry, offering high reactivity under mild conditions. Its labile ligands allow easy activation, making it suitable for use in pharmaceuticals, agrochemicals, and materials science. Also employed in cross-coupling reactions with aryl halides due to its stability and solubility in common organic solvents.