4,4'-Bis(α,α-dimethylbenzyl)diphenylamine
CAS 10081-67-1
EC 233-215-5
Formula C30H31N
MW 405.57 g/mol
Amines Plastics & PolymersRubber & TireLubricants & MetalworkingAutomotive Antioxidant & Stabilizer
Description
4,4'-Bis(α,α-dimethylbenzyl)diphenylamine (CAS 10081-67-1) is a secondary diarylamine antioxidant sold under trade names including Naugard 445, Permanax 49, and Permanax 49HV, and also referred to as Antioxidant 445 or 4,4'-dicumyl-diphenylamine. It carries no assigned E-code and is classified under HS code 29214990.
In rubber compounding and tire manufacturing, it interrupts free-radical chain oxidation at elevated temperatures, extending service life in dynamic applications. It is also incorporated into lubricant formulations and polymer systems — particularly polyurethanes and engineering plastics — where thermal and oxidative degradation must be controlled during processing and end use.
This material is supplied as a powder or crystalline solid and is subject to REACH registration requirements within the European Economic Area. Procurement teams should confirm supplier REACH compliance documentation and SDS availability. Standard industrial packaging applies; consult your supplier for specific lot sizes and lead times.
In rubber compounding and tire manufacturing, it interrupts free-radical chain oxidation at elevated temperatures, extending service life in dynamic applications. It is also incorporated into lubricant formulations and polymer systems — particularly polyurethanes and engineering plastics — where thermal and oxidative degradation must be controlled during processing and end use.
This material is supplied as a powder or crystalline solid and is subject to REACH registration requirements within the European Economic Area. Procurement teams should confirm supplier REACH compliance documentation and SDS availability. Standard industrial packaging applies; consult your supplier for specific lot sizes and lead times.
Physical Properties
| Melting Point | 99-100 °C |
| Boiling Point | 535.2±39.0 °C(Predicted) |
| Density | 1.061±0.06 g/cm3(Predicted) |
| Color | White to Almost white |
| Form | powder to crystal |
| Water Solubility | 6.7μg/L at 20℃ |
| Vapor Pressure | 6.67hPa at 20℃ |
| Log P | 7.9 at 25℃ |
Safety & Handling (Learn More)
Warning GHS07
H
H317H413
P
P261P272P273P280P321P501P302+P352P333+P317P362+P364
Trade & Regulatory
| HS Code | 29214990 |
Other Names
Permanax 49Naugard 445Permanax 49HVAntioxidant 445antioxidantky-4054,4’-Dicumyl-diphenylamineBis[4-(2-phenyl-2-propyl)phenyl]amine4,4’Bis(pehnylisopropyl)diphenylamine4,4`-bis(phenylisopropyl)diphenylamine
Related Products
Raw Materials
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