Description

2,2'-Methylenebis[4,6-Di-tert-Butyl-m-Cresol] is a high-performance sterically hindered phenolic antioxidant. This compound is critical for preventing oxidative degradation and extending the service life of polymers and other organic materials. It is an essential additive for manufacturers in the plastics, rubber, and lubricant industries who require reliable thermal and oxidative stabilization for their products.

Application

• Primary antioxidant for polyolefins (PP, PE) and other polymers to prevent thermal-oxidative degradation during processing and long-term use.
• Stabilizer for synthetic rubbers (SBR, BR, NBR) and elastomers to maintain elasticity and prevent cracking.
• Additive in lubricating oils, greases, and hydraulic fluids to inhibit oxidation and sludge formation.
• Stabilizing component in adhesives, sealants, and hot-melt formulations to enhance shelf-life and performance stability.
• Protective agent for petroleum-derived products like fuels and waxes against autoxidation.
• Used as an intermediate or additive in the production of other high-performance antioxidants and stabilizers.

Basic Information

Product Name	2,2'-Methylenebis[4,6-Di-tert-Butyl-m-Cresol]
CAS No.	19072-77-6
Molecular Formula	C29H44O2
Molecular Weight	424.66 g/mol
Synonyms	2,2'-Methylenebis(4,6-di-tert-butylphenol); Antioxidant 2246; AO 2246; Bis(3,5-di-tert-butyl-4-hydroxybenzyl)methane; 4,4'-Methylenebis(2,6-di-tert-butylphenol); MBDB; Phenol, 2,2'-methylenebis[6-(1,1-dimethylethyl)-4-methyl-; Lowinox 22M46; Ethanox 736
EINECS	242-799-4

Quality Control

Our production of 2,2'-Methylenebis[4,6-Di-tert-Butyl-m-Cresol] adheres to stringent quality management systems to ensure batch-to-batch consistency and high purity. The product is manufactured and tested in facilities committed to ISO standards. Comprehensive testing includes identity confirmation, assay, and impurity profiling. A Certificate of Analysis (COA) detailing all specification results is provided with each shipment.

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 has excellent shelf stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0 %
Melting Point	120 - 125 °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.