Antioxidant MD-697
Chemical Name: 2,2’-oxamidobis[ethyl-3-(3,5-di-t-butyl-4-hydroxyphenyl)]propionate
Structural Formula:

Molecular Formula: C40H60N2O8
Molecular Weight: 696.92
CAS No. [70331-94-1]
Physical Property: White or white powder, melting point 175-177℃, flashing point 206℃, kindling point 273℃, stabilization for heat. Solubility (g/100g solvent):acetone 10g, chloroform 35g, hexane 0.03g, styrene 5g, water 0.01g.
Appearance: White or white powder
Assay: ≥98%
Volatiles: ≤0.5%
Ash: ≤0.1%
Melting Range: 172-178℃
Heavy Metal: ≤100ppm
Applications:
This product is a sterically hindered phenolic antioxidant and metal deactivator. It protects polymers against oxidative degradation and metal catalyzed degradation during processing and in end-use applications. This antioxidant also provides long term thermal stabilization properties. This phenolic antioxidant 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 will stabilize polypropylene, polyethylene, polystyrene, polyester, EPDM, EVA, and ABS. Lowvolatility, strong synergistic effect with phosphites, other phenols and thioesters, non-staining and non-discoloring, FDA approved for adhesives and polymers.
Storage and Package: net weight: 40kg/box。