Used primarily as a plasticizer in polyvinyl chloride (PVC) and other polymers to improve flexibility, durability, and workability. It is commonly found in applications requiring good low-temperature performance, transparency, and resistance to water and light, such as in cables, hoses, flooring, coated fabrics, and products involving skin contact like toys, clothing, and carpets. As a phthalate ester, it offers a balance between cost and performance, serving as an alternative to traditional phthalate-based plasticizers (e.g., DEHP) in some formulations to meet regulatory and environmental demands due to its higher safety profile and lower migration rates. Also used in sealants, adhesives, and elastomers where moderate plasticizing efficiency and compatibility are required.