This product is white powder. Its molecular weight is 5330.87 while melting point is 50 -55ºC. It can be dissolved in solvents such as benezene, cyclohexanone and acetone. It can bu used as antioxidant in PE, PP, PS, ABS resin, Nylon, polyurethane, cellulose plastics and all kind of rubber products with good compatibility with these products. This product is low volatilizes, no discoloring and pollution. It shows perfect synergetic effect when being used together with DLTDP DSTDP and ultraviolet absorber. Because of very low toxicity, it can be used in food-touching materials. The general using rate is 0.1-0.5%.