Chemical Name: Poly ( Dipropyleneglycol) Phenyl Phosphite CAS No.:80584-86-7 Molecular formula:C102H134O31P8 Molecular weight:2102 Appearance: Clear liquid Specific gravity (25 degree):1.168-1.180 Refractive index (25 degree);1.533-1.538 PHOSPHITE ANTIOXIDANT HONOX-PDP is a high molecular weight phosphite antioxidant which has a high phosphorous content. It is available to apply in stabilizer in many polymers, including PVC, PU foam, PU leather, PU coating, synthetic resin, epoxy resin etc.