Description

2,2'-Methylenebis[6-(1,1-Dimethylethyl)-4-Ethyl-m-Cresol] is a high-performance phenolic antioxidant widely recognized for its effectiveness in protecting polymers and organic materials from oxidative degradation. This compound is critical for extending the service life and maintaining the physical properties of materials exposed to heat, light, and mechanical stress during processing and use. It is an essential additive for manufacturers in the polymer, rubber, lubricant, and adhesive industries seeking reliable stabilization solutions.

Application

• Primary antioxidant in polyolefins (PP, PE) and engineering plastics to prevent thermal-oxidative degradation during processing and end-use.
• Stabilizer for synthetic rubbers and elastomers, including SBR, BR, and NBR, to retain elasticity and prevent cracking.
• Additive in industrial lubricants and greases to inhibit oil oxidation and sludge formation, extending drain intervals.
• Key component in hot-melt adhesives and sealants to prevent gelation and maintain viscosity stability at elevated temperatures.
• Stabilizing agent for petroleum-based products like fuels and transformer oils to enhance oxidative stability.
• Used in the formulation of food-contact compliant polymers and packaging materials where regulatory-approved antioxidants are required.

Basic Information

Product Name	2,2'-Methylenebis[6-(1,1-Dimethylethyl)-4-Ethyl-m-Cresol]
CAS No.	93803-63-5
Molecular Formula	C₂₉H₄₄O₂
Molecular Weight	424.66 g/mol
Synonyms	2,2'-Methylenebis(6-tert-butyl-4-ethylphenol); Antioxidant 425; Ethanox 476; Bis(2-tert-butyl-4-ethyl-6-methylphenyl)methane; 4,4'-Methylenebis(2,6-di-tert-butyl-4-ethylphenol); Lowinox 22M46; AO-425; Santowhite PC
EINECS	Contact for details

Quality Control

Our production of 2,2'-Methylenebis[6-(1,1-Dimethylethyl)-4-Ethyl-m-Cresol] adheres to a stringent quality management system. Every batch is analyzed to ensure it meets precise specifications for purity, color, and melting point. Certificates of Analysis (COA) documenting these results are provided and can be tailored to meet specific customer or regulatory requirements, including those for food-contact applications.

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 standard
Assay (HPLC)	≥ 98.5%
Melting Point	125 - 130 °C
Loss on Drying	≤ 0.5%
Ash Content	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

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