Description

2,2'-Methylenebis(4-Methylphenol) is a phenolic antioxidant and chemical intermediate of significant industrial importance. Its primary value lies in its ability to function as an effective stabilizer against oxidative degradation in various polymeric and organic systems. This compound is essential for manufacturers in the polymer, rubber, and specialty chemical industries seeking to enhance product longevity and performance under demanding conditions.

Application

• Polymer Stabilizer: Acts as a primary antioxidant in polyolefins (e.g., polyethylene, polypropylene), polyamides, and other polymers to prevent thermal and oxidative degradation during processing and service life.
• Rubber Industry: Used as an antioxidant and anti-aging agent in the production of synthetic rubbers, tires, and rubber goods to extend shelf life and maintain elasticity.
• Chemical Intermediate: Serves as a key building block in the synthesis of more complex phenolic antioxidants, epoxy resins, and other specialty chemicals.
• Lubricant & Fuel Additive: Incorporated into industrial lubricants, greases, and fuels to inhibit oxidation, reduce sludge formation, and improve stability.
• Adhesive & Coating Formulations: Enhances the durability and resistance to yellowing or embrittlement in adhesives, sealants, and protective coatings.

Basic Information

Product Name	2,2'-Methylenebis(4-Methylphenol)
CAS No.	3236-63-3
Molecular Formula	C₁₅H₁₆O₂
Molecular Weight	228.29 g/mol
Synonyms	2,2'-Methylenebis(6-methylphenol); 4,4'-Methylenebis(2-methylphenol); Bis(2-hydroxy-5-methylphenyl)methane; Antioxidant 2246; AO 2246; MBMP; NSC 403697; 2,2'-Dihydroxy-3,3'-dimethyl-5,5'-methylenediphenol
EINECS	221-799-1

Quality Control

Our production of 2,2'-Methylenebis(4-Methylphenol) adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. The product is manufactured and tested in facilities that follow cGMP (current Good Manufacturing Practice) principles where applicable. Comprehensive testing includes identity confirmation, purity assay, and impurity profiling. A Certificate of Analysis (COA) detailing all test results 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 a controlled room temperature (15-25°C). Due to its nature of being easily oxidized, it is recommended to store under an inert atmosphere (e.g., nitrogen) for long-term storage of bulk quantities. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0 %
Melting Point	120 - 125 °C
Loss on Drying	≤ 0.5 %
Residue on Ignition	≤ 0.1 %
Heavy Metals (as Pb)	≤ 20 ppm

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