Rubber Antioxidant 6PPD (4020) Chemical Name: N-(1, 3-DIMETHYLBUTYL)-N- PHENYL-P-PHENYLENEDIAMINE Another Name: 4020 Molecular Formula: C18H24N2 CAS NO.: 793-24-8 Technical Specifications: Appearance: Purple brown to dark brown granules or flakes Melting point min.: 46.0 deg. Heating Loss % max.: 0.3 Ash Content % max.: 0.1 Purity % min.: 96 Packaging and storage: 1. In woven bag or paper bag lined with PE film bag, net weight: 25Kg/bag. 2. Stored in dry, clean and cool warehouse, Shelf life is one year.