Used primarily as a catalyst in organic synthesis, particularly in reactions involving the formation of carbon-carbon bonds. It is also employed in electrochemical applications, such as in the preparation of conductive polymers and coatings. Additionally, it serves as a precursor in the production of copper-based materials for electronics and semiconductors. In some cases, it is utilized in the formulation of specialty inks and dyes due to its stability and solubility in various solvents.