Diisopropyl Sebacate is primarily used as a plasticizer in polymers, particularly PVC resins, enhancing flexibility, durability, and low-temperature performance. It provides resistance to water, weather, and UV light, making it suitable for outdoor applications in coatings, adhesives, sealants, and plastic materials. Additionally, it is utilized in lubricant formulations to improve low-temperature flow properties. In cosmetic formulations, such as creams and lotions, it acts as an emollient, delivering a smooth, non-greasy feel on the skin. Its low volatility ensures suitability for applications requiring extended thermal stability.