Used primarily as a plasticizer in polymers, especially in polyvinyl chloride (PVC) and other plastics to improve flexibility, durability, and workability. It is favored in applications requiring good low-temperature performance and resistance to extraction by water or oils. Commonly found in wire and cable coatings, automotive parts, flooring, and synthetic leather. Also used in some adhesives and sealants to enhance elasticity and adhesion. Its molecular structure contributes to lower volatility and better permanence compared to shorter-chain plasticizers.