It is used as plasticizer or flame retardant in vinyl resin, natural and synthetic rubber, PVC、PUF、PC/ABS、PPO、PVAL、CA、CAB、CN 、VE、EC、EPOXY、coating、convey belt, artificial leather and flooring materials. The product has the features of low volatility, fine waterproof property, good fire resistance. It is also used as steam turbine oil and lubricating oil, extreme-pressure antiwear agent, EH oil.