Used primarily as a monomer in the production of high-performance polymers, especially in the synthesis of specialty polyesters and copolyesters. It imparts excellent clarity, toughness, and thermal stability to the resulting plastics. Commonly found in food and beverage packaging, medical devices, and consumer goods where resistance to hydrolysis and low toxicity are required. Also utilized in coatings and adhesives to enhance flexibility and durability. Its stereochemistry contributes to improved crystallinity and mechanical properties in polymer applications.