When combined with antioxidant 168 and DLTDP, the product has significant synergistic effect, which can effectively inhibit the thermal degradation and oxidative degradation of polymers. The product is widely used in polyethylene, polypropylene, polyformaldehyde, ABS resin, polystyrene, polyvinyl chloride alcohol, engineering plastics, synthetic rubber and petroleum products. The general consumption is 0.1% ~ 0.5%.