Used primarily as a plasticizer in polyvinyl chloride (PVC) and other polymers to improve flexibility, durability, and workability. Commonly found in wire and cable insulation, flooring, films, and molded plastic products where resistance to heat and light is required. Also used in sealants, adhesives, and coatings for industrial applications. Due to its low volatility and good extraction resistance, it is suitable for applications requiring long-term performance.