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N-(1,3-Dimethylbutyl)-N'-phenyl-p-phenylenediamine，Rubber Antioxidant 4020(6PPD)

Name：N-(1,3-Dimethylbutyl)-N'-phenyl-p-phenylenediamine，Rubber Antioxidant 4020(6PPD)

CAS no. : 793-24-8

Molecular formula: C₁₈H₂₄N₂

Molecular weight: 268.4

Structural formula：

Density: 0.986~1.00

Melting point: 45-46°C

Boiling point: 260ºC (16 mmHg)

Flash point: 204°C

Appearance: Colored solids. Soluble in gasoline, benzene, acetone and etc. Insoluble in water It will become black on exposure to air, but there is no effect on its properties. Due to low melting point, it should be stored away from high temperature.

Application: An antioxidant used for rubber products with high efficiency, low poison and low solvent-extraction amount. Also used as stabilizer in synthetic rubber which is widely applied in many kinds of rubber products.

Item	Granule
Appearance	Dark purple pastilles
Initial M.P. (Min) ≥ °C	45.0
Loss on drying (Max) ≤ %	0.50
Ash (Max) ≤ %	0.15
Assay(GC) ≥%	96.0

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