Chemical name:Octylated diphenylamine
Structural formula:

Molecular formula: C₂₀H₂₇N
Molecular weight: 281
Properties: Light brown powder or granules. Melting point ≥75°C. It is soluble in benzene, dichlorethane, carbon disulfide, acetone and gasoline; insoluble in water.
Functions: OD is antioxidant for NR, SBR, NBR and CR. It has good protective character to heat, oxygen, flexing and crazing, and is efficient to rubber whether used together with carbon black. It has obvious thermal brittleness resistance in CR, and can increase its protective character to ozone aging. It is mainly used in tyres, tube tyres, cables, rubber tapes, rubber pipes, filling rings, etc. Normal dosage is 0.5-2 phr.
Quality index:

Item	Value
Appearance	Light brown or off white powder or granules
Melting point °C ≥	87
Residue on ignition % ≤	0.3
Loss on heating % ≤	0.5

Package: Pack in paper bag lined with PVC film bag; net weight: 25kg/bag.
Storage: Store in dry and ventilated places. Keep away from moisture and fire.

OD is antioxidant for NR, SBR, NBR and CR. It has good protective character to heat, oxygen, flexing and crazing.