Used as a coupling agent in silicone chemistry to enhance adhesion between organic and inorganic materials. It is particularly effective in sealants, coatings, and adhesives where improved moisture resistance and durability are required. The compound modifies surface properties by introducing hydrophobic methyl and phenoxypropyl groups, making it useful in water-repellent treatments for glass, metals, and ceramics. Also serves as an intermediate in the synthesis of functional siloxane polymers used in specialty elastomers and resins.