Used primarily as a plasticizer in polymers to enhance flexibility and durability, especially in polyvinyl chloride (PVC) and other plastics. It improves low-temperature performance and resistance to heat and UV degradation. Commonly found in wire and cable insulation, flooring, films, and coatings where long-term stability is required. Also used in some sealants and adhesives for improved workability and elasticity. Due to its low volatility, it provides extended plasticizing effect in applications requiring prolonged service life.