Used primarily as a plasticizer in polymers, especially in PVC, to improve flexibility and durability. Commonly found in applications requiring low-temperature performance and good electrical insulation, such as wire and cable coatings, automotive parts, and flooring materials. Also utilized in synthetic lubricants and hydraulic fluids due to its thermal stability and resistance to oxidation. Employed in some cosmetic and personal care products as an emollient or solvent. Its low volatility makes it suitable for long-term applications where plasticizer migration is a concern.