Description

2,6-Bis-tert-Butyl-2',6'-Dimethoxy(4,4'-Methylenebisphenol) is a high-performance phenolic antioxidant and polymerization inhibitor. This compound is valued for its ability to effectively scavenge free radicals and prevent oxidative degradation in sensitive materials. It is primarily sought after by manufacturers in the polymer, rubber, and specialty chemical industries for stabilizing products and extending their service life.

Application

• Polymer Stabilization: Acts as a primary antioxidant in polyolefins (e.g., polyethylene, polypropylene), engineering plastics, and synthetic rubbers to prevent thermal and oxidative degradation during processing and end-use.
• Rubber Industry: Used as an anti-aging agent in the production of tires, seals, gaskets, and other rubber goods to enhance durability and resist cracking.
• Fuel & Lubricant Additive: Serves as an antioxidant additive in fuels, oils, and greases to inhibit gum formation and maintain performance under high-temperature conditions.
• Adhesive & Coating Formulations: Incorporated into adhesives, sealants, and protective coatings to prevent premature curing and degradation, ensuring shelf stability and performance.
• Chemical Intermediate: Utilized in the synthesis of more complex antioxidant molecules and specialty chemicals for advanced material science applications.

Basic Information

Product Name	2,6-Bis-tert-Butyl-2',6'-Dimethoxy(4,4'-Methylenebisphenol)
CAS No.	20690-83-9
Molecular Formula	C33H44O4
Molecular Weight	504.70 g/mol
Synonyms	2,2'-Methylenebis(6-tert-butyl-4-methoxyphenol); Antioxidant 2246-S; 4,4'-Methylenebis(2,6-di-tert-butylphenol) derivative; Bis(3,5-di-tert-butyl-4-hydroxyphenyl)methane dimethoxy derivative; Lowinox 2246S; Ethanox 736; AO-24; Phenolic antioxidant 2246
EINECS	Contact for details

Quality Control

Our production of 2,6-Bis-tert-Butyl-2',6'-Dimethoxy(4,4'-Methylenebisphenol) adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and performance meet defined specifications. A Certificate of Analysis (COA) detailing results for assay, melting point, and impurity profiles is provided with each shipment to guarantee traceability and consistent quality for your formulations.

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 (store under inert atmosphere) and is light-sensitive; prolonged exposure to air or light should be avoided to maintain efficacy. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	155 - 165 °C
Loss on Drying	≤ 0.5%
Heavy Metals	≤ 10 ppm

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