Used primarily as a plasticizer in polymer formulations to enhance flexibility and durability of plastics, especially in polyvinyl chloride (PVC) and related materials. It improves low-temperature performance and resistance to extraction by liquids, making it suitable for cables, films, and flexible tubing. Its long alkyl chains contribute to better compatibility with hydrophobic matrices and reduced volatility compared to shorter-chain plasticizers. Also explored in specialty applications such as lubricant additives and in controlled release systems due to its slow degradation and solubility characteristics.