Used primarily as a plasticizer in polymers, especially in PVC and other flexible plastics, to improve workability, flexibility, and durability. It is valued for its low volatility and good resistance to extraction by water and oils, making it suitable for applications in automotive parts, wire and cable insulation, and industrial films. Also employed in sealants and adhesives where enhanced elongation and low-temperature performance are required. Its compatibility with various resin systems allows use in coatings and elastomers needing improved impact resistance and weatherability.