Methyldiphenylsilane is primarily used as a key intermediate in the synthesis of various organosilicon compounds. It plays a significant role in the production of silicone polymers and resins, which are widely utilized in coatings, adhesives, and sealants due to their thermal stability and water repellency. Additionally, it is employed in the development of specialty materials for electronics, such as insulating layers and dielectric films, owing to its excellent electrical properties. In the pharmaceutical industry, it serves as a building block for creating silane-based drug delivery systems. Its application also extends to research and development, where it is used to modify surface properties of materials for enhanced performance in specific applications.