Used primarily as a plasticizer in polymer formulations to enhance flexibility and workability of plastics, especially in polyvinyl chloride (PVC) and related materials. It improves low-temperature performance and increases resistance to heat and aging. Its long alkyl chain structure contributes to good solvating properties and reduced volatility compared to shorter-chain plasticizers. Also finds use in specialty coatings and sealants where durability and flexibility are required. Shows lower migration rates in polymer matrices, making it suitable for long-life applications.