Used as a plasticizer in polymer formulations to improve flexibility and durability of plastics, especially in polyvinyl chloride (PVC) and other synthetic resins. Enhances low-temperature performance and resistance to UV degradation. Employed in coatings, adhesives, and sealants for improved workability and film formation. Also utilized in specialty lubricants and as an intermediate in the production of biodegradable polyesters for industrial and medical applications.