Description

2-[[2-Hydroxy-5-Methyl-3-(2,4,4-Trimethylpentan-2-Yl)Phenyl]-Phenyl-Me Thyl]-4-Methyl-6-(2,4,4-Trimethylpentan-2-Yl)Phenol is a high-performance phenolic antioxidant, specifically a hindered phenol, designed to inhibit oxidative degradation in various materials. This compound is critical for extending the service life and maintaining the physical properties of polymers and other organic substrates by scavenging free radicals. It is primarily needed by manufacturers in the polymer, rubber, lubricant, and specialty chemical industries seeking reliable stabilization solutions for their products.

Application

• Primary antioxidant for polyolefins (PP, PE) to prevent thermal and oxidative degradation during processing and end-use.
• Stabilizer for elastomers and synthetic rubbers to retain elasticity and prevent cracking.
• Additive in industrial lubricants and greases to enhance oxidative stability and prolong oil life.
• Stabilizing component in adhesives, sealants, and coatings to improve durability.
• Antioxidant for engineering plastics such as polyamides and polyesters.
• Intermediate in the synthesis of other specialty hindered phenol antioxidants.

Basic Information

Product Name	2-[[2-Hydroxy-5-Methyl-3-(2,4,4-Trimethylpentan-2-Yl)Phenyl]-Phenyl-Me Thyl]-4-Methyl-6-(2,4,4-Trimethylpentan-2-Yl)Phenol
CAS No.	6635-04-7
Molecular Formula	C33H52O2
Molecular Weight	480.77 g/mol
Synonyms	2,2'-Methylenebis(6-(1,1,3,3-tetramethylbutyl)-4-methylphenol); 2,2'-Methylenebis(6-tert-octyl-4-methylphenol); Antioxidant 2246; AO-2246; 4,4'-Methylenebis(2-tert-octyl-6-methylphenol); Bis(3-tert-octyl-2-hydroxy-5-methylphenyl)methane; Lowinox® 22M46; Naugard® 2246; Ethanox® 2246
EINECS	229-632-1

Quality Control

Our production of Antioxidant 2246 adheres to strict quality management systems. Every batch is tested to ensure it meets high-purity specifications, with key parameters including assay, melting point, and color. A comprehensive Certificate of Analysis (COA) detailing the results of these quality control tests is provided with each shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its nature as an easily oxidized compound, prolonged exposure to air should be minimized. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0 %
Melting Point	125 - 130 °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.