This product is an aryl alkyl phosphite antioxidant, which can be used as a chelating agent and auxiliary stabilizer in PVC and synthetic resin products. In addition to good color inhibition, it can also increase oxygen resistance and light stability. As an auxiliary antioxidant, it is suitable for polypropylene and can reduce the formation of color. It can be used as a chelating agent for polyvinyl chloride. When used with metal soap, it can improve heat resistance and transparency. It can be used as a heat stabilizer in ABS resin.