Description

2,2'-Methylenebis[4-(1-Methyl-1-Phenylethyl)Phenol] is a high-purity, sterically hindered phenolic compound that serves as a highly effective antioxidant and polymerization inhibitor. Its primary value lies in its ability to prevent oxidative degradation and premature polymerization in sensitive materials, thereby extending their shelf life and performance stability. This product is essential for manufacturers in the polymer, rubber, and specialty chemical industries who require reliable stabilization for their formulations.

Application

• Polymer Stabilization: Acts as a primary antioxidant in polyolefins (e.g., polyethylene, polypropylene), polystyrene, and engineering plastics to prevent thermal and oxidative degradation during processing and end-use.
• Rubber Industry: Used as an antioxidant and anti-aging agent in synthetic rubber production (SBR, BR, NBR) and rubber products to maintain elasticity and prevent cracking.
• Adhesives & Sealants: Inhibits gelation and extends pot life in reactive adhesive systems, including epoxy, polyurethane, and acrylic formulations.
• Lubricant & Fuel Additive: Functions as an antioxidant additive in industrial lubricants, greases, and fuels to reduce sludge formation and viscosity increase.
• Monomer & Chemical Intermediate: Serves as a stabilizer for monomers like styrene, butadiene, and acrylates during storage and transportation to prevent unwanted polymerization.
• Specialty Chemical Synthesis: Utilized as a key building block or intermediate in the synthesis of more complex antioxidants, UV stabilizers, and other functional additives.

Basic Information

Product Name	2,2'-Methylenebis[4-(1-Methyl-1-Phenylethyl)Phenol]
CAS No.	71113-22-9
Molecular Formula	C₃₃H₃₆O₂
Molecular Weight	464.64 g/mol
Synonyms	2,2'-Methylenebis(4,6-di-tert-butylphenol) analog; Bis[4-(1-methyl-1-phenylethyl)phenyl]methane-2,2'-diol; Phenol, 2,2'-methylenebis[4-(1-methyl-1-phenylethyl)-; Antioxidant 2246-S; AO-2246; 4,4'-Methylenebis(2,6-di-tert-amylphenol) related compound; Bis(4-(alpha,α-dimethylbenzyl)phenyl)methane-2,2'-diol
EINECS	Contact for details

Quality Control

Our production of 2,2'-Methylenebis[4-(1-Methyl-1-Phenylethyl)Phenol] adheres to a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and performance. Certificates of Analysis (COA) documenting key parameters are provided with each shipment. We are committed to consistent quality and supply reliability for our global B2B partners.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This material is easily oxidized; for long-term storage, consider keeping under an inert atmosphere (e.g., nitrogen). Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0 %
Melting Point	115 - 125 °C
Loss on Drying	≤ 0.5 %
Residue on Ignition	≤ 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.