Used as a key intermediate in the synthesis of silicon-containing polymers, particularly in the production of silicone resins and elastomers. Its phenyl and ethynyl groups contribute to enhanced thermal stability and mechanical properties, making it suitable for high-performance materials in aerospace and electronics industries. Additionally, it serves as a precursor in the development of organosilicon compounds for use in coatings, adhesives, and sealants, where durability and resistance to extreme conditions are required. Its unique structure also allows for applications in organic light-emitting diodes (OLEDs) and other optoelectronic devices due to its efficient electron transport properties.