Used as a catalyst in organic synthesis, particularly in coupling reactions such as Ullmann-type reactions for forming carbon-heteroatom bonds. Employed in electroplating processes to deposit copper coatings on various substrates for improved conductivity and corrosion resistance. Applied in the textile industry as a dye fixative and color enhancer for cotton and other natural fibers. Utilized in wood preservation formulations to protect against fungal decay and insect damage. Serves as a precursor for preparing copper-based nanoparticles and functional materials in research and industrial applications. Also used in agricultural formulations as a micronutrient supplement to correct copper deficiency in soils.