Description

2,2'-Ethylidenebis[6-(1,1-Dimethylethyl)-4-(1-Methylpropyl)Phenol] is a high-performance, sterically hindered phenolic antioxidant. This compound is valued for its ability to inhibit oxidative degradation and extend the service life of materials exposed to heat and oxygen. It is primarily utilized in the formulation of polymers, lubricants, and other industrial products where long-term stability is critical.

Application

• Primary antioxidant in polyolefins (e.g., PP, PE) and engineering plastics to prevent thermal-oxidative degradation during processing and end-use.
• Stabilizer additive in industrial lubricants, greases, and transformer oils to enhance oxidative stability and prolong fluid life.
• Key component in rubber and elastomer formulations to protect against heat aging and maintain mechanical properties.
• Used in adhesives, sealants, and coatings to prevent premature embrittlement and loss of adhesion.
• Stabilizer for hot-melt adhesives and other thermoplastic systems processed at elevated temperatures.
• Intermediate in the synthesis of more complex polymer additives and specialty chemicals.

Basic Information

Product Name	2,2'-Ethylidenebis[6-(1,1-Dimethylethyl)-4-(1-Methylpropyl)Phenol]
CAS No.	72672-55-0
Molecular Formula	C₃₄H₅₂O₂
Molecular Weight	492.78 g/mol
Synonyms	2,2'-Ethylidenebis(4,6-di-tert-butylphenol); Ethylidenebis(4,6-di-tert-butylphenol); Bis(4,6-di-tert-butyl-2-hydroxyphenyl)methane; Antioxidant 702; AO 702; Phenol, 2,2'-ethylidenebis[4,6-bis(1,1-dimethylethyl)-; 4,4'-Methylenebis(2,6-di-tert-butylphenol) analog
EINECS	Contact for details

Quality Control

Our production of 2,2'-Ethylidenebis[6-(1,1-Dimethylethyl)-4-(1-Methylpropyl)Phenol] adheres to strict quality management protocols. Every batch undergoes rigorous analytical testing to ensure high purity and consistent performance. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and key physical parameters is provided with each shipment to guarantee compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is easily oxidized; for long-term storage, maintaining an inert atmosphere (e.g., under nitrogen) is recommended to preserve efficacy. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	155 - 165 °C
Loss on Drying	≤ 0.5%
Ash Content	≤ 0.1%

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