Silver diethyldithiocarbamate (SDDC) is an organometallic compound composed of silver ions complexed with the ligand diethyldithiocarbamate. Primarily utilized as a reagent in analytical chemistry, SDDC is employed to detect the presence of copper, iron, and other heavy metals in various materials. Acting as a chelating agent, it binds with metal ions to form stable complexes that can be easily analyzed using techniques such as UV-visible spectroscopy.