Antioxidant 6PPD(Chemical name: N-(1,3-dimethylbutyl)-N′-phenyl-p-phenylenediamine, abbreviated as 6PPD)is a widely used p-phenylenediamine type antioxidant in the rubber industry. It typically appears as grayish-purple to brownish-purple granules or powder. It exhibits excellent ozone resistance, thermal-oxidative aging protection, good compatibility, and low volatility. 6PPD is extensively applied in tires (particularly radial tires), hoses, cables, rubber seals, and other industrial rubber products, and is considered one of the most effective and widely used antioxidants today.