Used primarily as a plasticizer in polyvinyl chloride (PVC) and other polymer systems to improve flexibility and durability. It is especially effective in applications requiring low-temperature performance and good resistance to extraction by water or oils. Commonly found in wire and cable insulation, automotive parts, flooring, and flexible films where enhanced elongation and impact resistance are needed. Its molecular structure contributes to improved compatibility with PVC resins, resulting in clear, stable formulations with reduced migration and volatility compared to smaller, more common plasticizers. Also utilized in some adhesives and sealants to maintain flexibility over a wide temperature range.