Tetraphenyltin is widely used as a stabilizer in the production of polyvinyl chloride (PVC) to enhance its thermal stability and prevent degradation during processing. It is also employed as a catalyst in organic synthesis, particularly in reactions involving the formation of carbon-carbon bonds, such as the Stille coupling reaction. In the field of materials science, it serves as a precursor for the synthesis of tin-based nanomaterials and coatings, which are utilized in electronics and optoelectronics. Additionally, tetraphenyltin finds application in antifouling paints for marine vessels, where it helps prevent the growth of aquatic organisms on submerged surfaces. Its role in these diverse industries highlights its versatility and importance in both industrial and research settings.