Used primarily as a plasticizer in polyvinyl chloride (PVC) and other polymer systems, it improves flexibility, durability, and low-temperature performance. It is favored in applications requiring good resistance to heat and UV degradation, such as in wire and cable insulation, automotive parts, and outdoor furnishings. Due to its relatively low volatility and good extraction resistance, it performs well in long-term applications where plasticizer retention is critical. It is also considered a potential alternative to phthalate-based plasticizers in environmentally sensitive applications.