Chemical name: 2,2-oxamidobis[ethyl 3-(3,5-di-t-butyl-4-hydroxyphenyl) propionate CAS No.:70331-94-1 Molecular formular:C40H60N2O8 Molecular weight:696.92 Appearance: White powder Assay,%:98 min. Melting point,degree:174-180 Ash,%: 0.1max. Volatility,%: 0.5max. Light transmittance: 425nm 97%min. 500nm 98% min. ANTIOXIDANT HONOX-697 is a sterically hindered phenolic antioxidant and metal deactivator. It protects polymers against oxidative degradation and metalcatalyzed degradation during processing and in end-use applications. It also provides long term thermal stabilization properties. It has low volatility. It is an excellent, non-discoloring, non-staining antioxidant and thermal stabilizer with outstanding metal deactivation properties. Typical end use applications include wire and cable insulation, film and sheet manufacture as well as automotive parts. It is especially suitable for polypropylene, polyethylene, polystyrene, polyester, DPDM, EVA and ABS. It has synergistic effect with phosphites, other phenols and thioesters. It is also FDA approved for adhesives and polymers.