Description

Alkylated Diphenylamines CAS NO 68921-45-9 are a class of high-performance, sterically hindered amine antioxidants widely used to inhibit oxidative degradation in various industrial systems. Their primary value lies in their exceptional ability to scavenge peroxy radicals, thereby extending the service life and maintaining the performance integrity of base materials. This product is essential for manufacturers in the lubricant, polymer, rubber, and fuel industries seeking to enhance product stability and durability under demanding thermal and oxidative conditions.

Application

• Primary antioxidant in engine oils, transmission fluids, gear oils, and industrial lubricants to prevent viscosity increase and deposit formation.
• Stabilizer for synthetic and mineral-based lubricating greases to protect against thermal-oxidative thickening.
• Critical additive in hydraulic fluids and turbine oils for long-term oxidation control.
• Antioxidant for elastomers and rubber compounds (e.g., in tires, seals, hoses) to resist cracking and hardening.
• Stabilizing agent in polyolefins (PP, PE) and other polymers during processing and end-use.
• Additive in fuels and biofuels to improve storage stability and prevent gum formation.
• Component in industrial grease formulations for high-temperature applications.
• Used in transformer oils to enhance oxidative stability and extend operational life.

Basic Information

Product Name	Alkylated Diphenylamines
CAS No.	68921-45-9
Molecular Formula	Typically C12-14 alkylated diphenylamine (Variable)
Molecular Weight	Variable (Contact for details)
Synonyms	Alkylated Diphenylamine Antioxidant; Diphenylamine, alkylated; ADPA; Octylated diphenylamine; Dioctyl diphenylamine; Butylated octylated diphenylamine; Antioxidant 288; Antioxidant 8; NA-LUBE® ADPA; VANLUBE® 81; Kerobit® BTO
EINECS	Contact for details

Quality Control

Our Alkylated Diphenylamines are manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, performance, and consistency. Certificates of Analysis (COA) detailing key parameters such as assay, color, and viscosity are available upon request. Our quality commitment aligns with industry best practices for chemical additives.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong acids and oxidizing agents. Recommended storage temperature is between 15°C and 25°C (59°F and 77°F). Keep container tightly sealed when not in use to minimize exposure to air and moisture.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Color (Gardner)	≤ 6
Assay (GC)	≥ 95.0%
Nitrogen Content	≥ 4.0%
Viscosity @ 40°C	Contact for details
Specific Gravity @ 20°C	0.94 - 0.98
Flash Point (PMCC)	> 150°C

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.