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Rubber Antioxidant 6PPD (4020)

Short Description:

Chemical Name N-1,3-dimethylbutyl-N’-phenyl-p-phenylenediamine
Molecular Formula C18H24N2
Molecular Structure Rubber Antioxidant 6PPD (4020)
Molecular Weight 268.40
CAS No. 793-24-8

Product Detail

Product Tags





Grayish brown to brown Granular

Crystallizing Point,℃ ≥


Loss on Drying, % ≤


Ash, % ≤


Assay, % ≥



Gray purple to puce granular, relative density is 0.986-1.00. Soluble in benzene, acetone, ethyl acetate, toluene dichloroethane and slightly soluble in ether, do not dissolve in water. Provides powerful and antioxidant properties with excellent high temperature and flexing resistance to rubber compounds.


Application range include the use in pneumatic tire components, solid tires, conveyor, hoses, cables, bushings, automotive mounts and general rubber products that are exposed to continuous and intermittent dynamic operating conditions and require protect ozone .


25kg kraft paper bag.

Rubber Antioxidant 6PPD (4027)
Rubber Antioxidant 6PPD (4028)


The product should be stored in the dry and cooling place with good ventilation, avoiding exposure of the packaged product to direct sunlight. The validity is 2 years.

Related information extension

Other names:
N-(1,3-Dimethylbutyl)-N-Phenyl-p-phenylene Diamine;
Antioxidant 4020; N-(1,3-Dimethylbutyl)-N-Phenyl-1,4-Benzenediamine; Flexzone 7F; Vulkanox 4020; BHTOX-4020; N-(1.3-dimethylbutyl)-N'-phenyl-p-phenylenediamine; N-(4-methylpentan-2-yl)-N'-phenylbenzene-1,4-diamine

It belongs to the rubber antioxidant of p-phenylenediamine. The pure product is white powder and oxidized into brown solid when exposed to air. In addition to its good anti-oxygen effect, it also has the functions of anti-ozone, anti-bending and cracking, and inhibiting copper, manganese and other harmful metals. Its performance is similar to that of the antioxidant 4010NA, but its toxicity and skin irritation are less than 4010NA, and its solubility in water is also better than 4010NA. The melting point is 52 ℃. When the temperature exceeds 35-40 ℃, it will slowly agglomerate.
The anti-ozone agent and antioxidant used in natural rubber and synthetic rubber have excellent protective effects on ozone cracking and bending fatigue aging, and also have good protective effects on heat, oxygen, copper, manganese and other harmful metals. Applicable to nitrile rubber, chloroprene rubber, styrene-butadiene rubber, AT; NN, natural rubber, etc.

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