Antioxidant 77PD, CAS 3081-14-9, N,N'-Bis(1,4-dimethylpentyl)-p-phenylenediamine
Hosea Chem® is a premier China manufacturer and global exporter of high-purity Antioxidant 77PD (CAS 3081-14-9), also known as Antioxidant 4030 or N,N'-Bis(1,4-dimethylpentyl)-p-phenylenediamine. Serving as an exceptional antioxidant and antiozonant for natural and synthetic rubbers (NR, SBR, NBR, BR), Antioxidant 77PD delivers superior protection against static ozone aging and flex cracking. We guarantee stable bulk inventory (20,000 MT/year capacity), direct factory pricing, and worldwide shipment with full TDS, SDS, and COA documentation.
Product Chemical Properties
Product Name: Antioxidant 77PD (N,N'-Bis(1,4-dimethylpentyl)-p-phenylenediamine) (Antioxidant 4030)
CAS No.: 3081-14-9
Molecular Formula: C20H36N2
Molecular Weight: 304.51

This product is a dark red liquid.
Relative density: 0.894–0.90
Soluble in benzene and diethyl ether; insoluble in water
Lower toxicity than antioxidant 4010NA
Flash point (°C): 203
Melting point (°C): 14.1
Boiling point (°C): 237
Relative density (water = 1): 0.894–0.906 (16°C)
Product Technical Specification
Appearance: dark red liquid
Assay, %: ≥94.0%
Ash, %: ≤0.1%
Heating loss, %: ≤0.5%
Applications of Antioxidant 77PD
Antioxidant 77PD, CAS 3081-14-9 offers superior resistance to ozone aging under static conditions compared to antioxidant 4010NA, it provides good short-term ozone resistance under dynamic conditions and effectively protects against flex cracking. It can be incorporated directly into rubber compounds, though it has a slight tendency to accelerate scorch.
The typical dosage is 0.7–1.5 parts by mass.
It is used as an antiozonant in natural rubber, polybutadiene rubber (BR), styrene-butadiene rubber (SBR), polyisoprene rubber (IR), nitrile rubber (NBR), and butyl rubber (IIR).
It can also serve as a tear-resistance agent or a general-purpose antioxidant.
Packaging
Packed in 180kg /Drum, 190kg/Drum, 930kg/IBC, 20MT/ISO Tank
Production Capacity
20000 MT per year.
Storage Requirements
Antioxidant 77PD should be stored a cool, dry and well-ventilated place. Keep away from direct sunlight, heat sources and moisture. Seal tightly after use.