9-Anthracenyl Trimethoxysilane is primarily used as a coupling agent in the modification of surfaces, particularly in the field of materials science. It is applied to enhance the adhesion between organic polymers and inorganic substrates, such as glass or metals. This chemical is especially valuable in the development of advanced coatings and composites, where it improves the mechanical properties and durability of the final product. Additionally, it is utilized in the creation of functionalized surfaces for sensors and optoelectronic devices, leveraging its anthracene group for fluorescence-based applications. Its role in surface functionalization also extends to nanotechnology, where it aids in the precise assembly of nanostructures.