Widely used as a plasticizer in polyvinyl chloride (PVC) and other polymers, it improves flexibility, durability, and low-temperature performance. Commonly found in wire and cable coatings, automotive parts, and flooring materials due to its good electrical insulation and resistance to heat and UV exposure. Also used in sealants and adhesives where long-term flexibility is required. Offers better migration resistance compared to some phthalate plasticizers, making it suitable for applications demanding extended service life.