Used as a key intermediate in the synthesis of biodegradable polyesters and polyurethanes, this diester contributes flexibility and hydrolytic stability to polymer chains. Its hydroxyl-terminated structure allows for controlled polymerization, making it suitable in coatings, elastomers, and medical-grade polymers where degradation resistance and mechanical strength are required. It is also employed in specialty resins for 3D printing and adhesives due to its balanced hydrophilicity and reactivity.