Used primarily as a plasticizer in polymers, especially in polyvinyl chloride (PVC) and related plastics. It improves flexibility, workability, and durability of the final product. Commonly found in cables, flooring, films, and coatings where good low-temperature performance and resistance to water extraction are required. Also used in sealants and adhesives due to its compatibility with various resins and ability to enhance elongation and impact resistance. Shows moderate volatility and good hydrolytic stability, making it suitable for both indoor and outdoor applications.