The product is a kind of assistant Antioxidants, which has a good synergistic effect when cooperated with antioxidant 1010 or antioxidant 1076. It can prevent resin from thermal degradation during the process of extrusion and injection molding. Long term protection is offered to the polymers at the same time. This non-staining product has a good volatility resistance. It is can be used in PE, PP, PS, PU and other products.