Description

Dioctyldiphenylamine CAS NO 101-67-7 is a high-performance, sterically hindered secondary amine antioxidant widely used to inhibit oxidative degradation in various industrial systems. Its primary value lies in its excellent thermal stability and ability to function as a highly effective radical scavenger, extending the service life of materials exposed to heat and oxygen. This makes it a critical additive for manufacturers in the polymer, lubricant, and fuel industries seeking to enhance product durability and performance under demanding conditions.

Application

• Polymer Stabilization: A key antioxidant for polyolefins (e.g., polyethylene, polypropylene), synthetic rubbers (e.g., SBR, NBR), and other polymers to prevent chain scission and cross-linking during processing and long-term thermal aging.
• Lubricant & Grease Additive: Used in engine oils, industrial lubricants, and greases to inhibit oxidation, reduce sludge and varnish formation, and extend oil drain intervals and equipment life.
• Fuel & Petroleum Product Stabilizer: Added to gasoline, diesel, and other hydrocarbon fuels to prevent gum formation and oxidative degradation during storage and use.
• Adhesive & Sealant Formulations: Enhances the thermal-oxidative stability of hot-melt adhesives, sealants, and other resin-based systems.
• Elastomer Protection: Protects synthetic and natural rubber products, such as tires, hoses, and belts, from heat-induced cracking and loss of elasticity.
• Transformer Oil Additive: Contributes to the oxidative stability of dielectric insulating fluids in electrical transformers.

Basic Information

Product Name	Dioctyldiphenylamine
CAS No.	101-67-7
Molecular Formula	C28H43N
Molecular Weight	393.65 g/mol
Synonyms	Bis(octyl)diplenylamine; Di-n-octyldiphenylamine; Dioctyldiplenylamine; DODPA; Antioxidant DODPA; Vanlube 81; Octylated diphenylamine; p,p'-Dioctyldiphenylamine; Diphenylamine, dioctyl-; Diphenylamine, N,N-dioctyl-; N,N-Dioctyldiphenylamine
EINECS	202-966-0

Quality Control

Our production of Dioctyldiphenylamine adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including assay, identification, and impurity profile analysis, to meet exacting customer and industry specifications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat sources, open flames, and strong oxidizing agents.

Specification

Item	Specification
Appearance	Light yellow to amber viscous liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Color (Gardner)	≤ 6
Moisture (KF)	≤ 0.1%
Ash Content	≤ 0.1%

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