This product is auxiliary heat stabilizer of PVC heat stabilizer, which can effectively improve the halogenated polymers such as PVC thermal stability and initial whiteness, and stearyl benzene, methane (SBM), methylene benzoyl (DBM) has significant synergistic effect. Also used as catalyst, resin crosslinker,resin hardening accelerator,resins and rubber additives, super conductive film, hotline reflective glass membrane, transparent conductive film forming agent and so on, is a new kind of plastic stabilizer, environmental protection performance is better than that of organic tin stabilizer series, conform to the requirements of the ROSH environmental directives, additives is replace lead additives and environmentally friendly products.