This product is white powder.Its molecular weight is 552.78 while melting point is 224-229ºC. It can be dissolved in solvents such as methanol, acetone slightly soluble in chloroform and ethly acetate while never be dissoled in water. This product is a metalion deactivator(metal chelator) or antioxidant, preventing heavy metal ions produced by oxidation of the polymer. It is suitable for polyolefins, nylon,polyester, cellulose resins and synthetic rubber, especially for HDPE. It can be applied alone or in combination with antioxidant 1010. The general using rate is 0.1-0.5%.