Used primarily as a plasticizer in polymers requiring flexibility and durability, especially in specialty applications where resistance to heat and UV degradation is important. Commonly found in coatings, sealants, and adhesives to improve workability and elongation. Also utilized in the formulation of printing inks and cable insulation materials due to its good electrical insulating properties and low volatility. Its branched alkyl chain structure contributes to improved migration resistance compared to linear phthalates, making it suitable for long-life applications.