Diisooctyl sebacate is an excellent low temperature resistant plasticizer, which is commonly used in the plasticizing application of PVC cable material, cold resistant film, artificial leather and other resins. At the same time, it also has an important use as a base oil for biomass-based lubricating oil, which can be used as a base oil for jet engine lubricating oil due to its high temperature resistance, low temperature resistance, degradation and other characteristics