Description

2,2'-Methylenebis[4,6-Di-tert-Butylphenol] is a high-performance sterically hindered phenolic antioxidant. This compound is critical for preventing oxidative degradation and extending the service life of polymers and hydrocarbon-based materials. It is essential for manufacturers in the plastics, rubber, and lubricant industries who require reliable stabilization against thermal and oxidative stress.

Application

This hindered phenol antioxidant is utilized across various industries for its superior stabilizing properties. Key application areas include:

• Polymer Stabilization: Primary antioxidant for polyolefins (PP, PE), engineering plastics, and synthetic rubbers to prevent thermal-oxidative degradation during processing and end-use.
• Lubricant & Fuel Additive: Used in engine oils, greases, and industrial lubricants to inhibit oxidation, reduce viscosity increase, and control sludge formation.
• Elastomer Protection: Extends the lifespan of styrene-butadiene rubber (SBR), nitrile rubber (NBR), and other elastomers by scavenging free radicals.
• Adhesive & Sealant Formulations: Enhances the thermal stability and prevents embrittlement of hot-melt and reactive adhesive systems.
• Synergistic Blends: Often used in combination with secondary antioxidants (e.g., phosphites, thioesters) for enhanced stabilization performance.
• Petroleum Product Stabilization: Protects transformer oils, hydraulic fluids, and other hydrocarbon fluids from oxidative breakdown.

Basic Information

Product Name	2,2'-Methylenebis[4,6-Di-tert-Butylphenol]
CAS No.	14362-12-0
Molecular Formula	C29H44O2
Molecular Weight	424.66 g/mol
Synonyms	2,2'-Methylenebis(4,6-di-tert-butylphenol); Antioxidant 2246; Bis(4,6-di-tert-butyl-2-hydroxyphenyl)methane; 4,4'-Methylenebis(2,6-di-tert-butylphenol); AO 2246; MBDBP; Phenol, 2,2'-methylenebis[4,6-bis(1,1-dimethylethyl)-]; Lowinox® 22M46; Anox® 22
EINECS	238-313-5

Quality Control

Our production of 2,2'-Methylenebis[4,6-Di-tert-Butylphenol] adheres to stringent quality management systems. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, color, and performance. Certificates of Analysis (COA) documenting key parameters are available upon request to support your quality assurance protocols.

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 and incompatible materials. Under these conditions, the product remains stable for extended periods.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0 %
Melting Point	154 - 158 °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.