Rubber Antioxidant 4020 (6PPD) Commodity name: rubber antioxidant 4020(6ppd) Chemical name: n - ( 1, 3 - dimethylbutyl ) - n' - phenyl - p phenylenediamine Cas no.: 793-24-8 Quality standard: hg/t 3644-1999 Application: mainly used in manufacture of tires, rubber shoes and other rubber products Specification: Appearance dark purple pastilles. Dark purple pastilles. Melting point 45.0 min Heating loss 0.50% max Ash 0.15% max Assay(gc) 96.0% min Solidifying point 45.5 min Packing: 20kg net, paper bag