Diamminediiodoplatinum is primarily used in research and development within the field of inorganic and organometallic chemistry. It serves as a precursor for the synthesis of various platinum complexes, which are explored for their potential applications in catalysis and material science. The compound is also studied for its role in the development of anticancer agents, as platinum-based drugs are known for their efficacy in chemotherapy. Additionally, it finds utility in the preparation of platinum-containing nanomaterials, which are investigated for use in sensors, electronics, and photonics due to their unique properties.