Methyltrimethoxysilane is a colorless liquid with the chemical formula C4H12O3Si. It is commonly known as MTMS and serves as a versatile silane coupling agent in various industries. With its trimethoxysilane structure, it acts as a crosslinking agent, surface modifier, and adhesion promoter. Methyltrimethoxysilane facilitates crosslinking reactions, enhances surface properties and reactivity, and improves adhesion between different materials.