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 elongation properties, making it suitable for flexible films, coatings, and cables. Its long alkyl chain structure contributes to good compatibility with non-polar matrices and offers improved water resistance in finished products. Also found in some specialty applications such as lubricants and cosmetic formulations where mildness and stability are required.