Widely added in organic compounds, it can inhibit the thermal oxidation aging of polymers and prevent the occurrence of mechanical strength decline and pulverization caused by thermal oxidation aging, and has excellent long-term thermal stability effect. This product can be used with phenolic main antioxidant with better effect. This product has the characteristics of high efficiency, low volatility and low color influence, and is especially suitable for polyolefins, such as polyethylene, polypropylene, polybutene and other polymers, such as polyoxymethylene, polyamide, polyurethane, polyester, polyvinyl chloride, polystyrene, various elastomers and coatings.