Description

4,4'-[2,4,6-Trimethyl-1,3-Phenylenebis(Methylene)]Bis[2,6-Di(tert-Butyl)Phenol] is a high-performance, sterically hindered phenolic antioxidant. This compound matters for its exceptional ability to inhibit oxidative degradation in polymers and other organic materials, thereby extending their service life and maintaining performance under demanding conditions. It is primarily needed by manufacturers in the polymer, rubber, and specialty chemical industries seeking to enhance the thermal and oxidative stability of their products.

Application

• Polymer Stabilization: Primary antioxidant for polyolefins (PP, PE), engineering plastics, and synthetic rubbers to prevent thermal-oxidative degradation during processing and long-term use.
• Rubber Industry: Used in the formulation of tires, seals, and industrial rubber goods to protect against heat aging and flex-cracking.
• Lubricant & Fuel Additive: Functions as an antioxidant in high-temperature lubricating oils, greases, and industrial fuels to reduce sludge formation and viscosity increase.
• Adhesive & Sealant Formulations: Enhances the shelf-life and durability of hot-melt and reactive adhesives by preventing resin oxidation.
• Coating Resins: Protects alkyd, acrylic, and other coating resins from yellowing and embrittlement caused by oxidation.
• Intermediate for Specialty Chemicals: Serves as a key building block in the synthesis of more complex antioxidant and light stabilizer molecules.

Basic Information

Product Name	4,4'-[2,4,6-Trimethyl-1,3-Phenylenebis(Methylene)]Bis[2,6-Di(tert-Butyl)Phenol]
CAS No.	41642-52-8
Molecular Formula	C43H64O2
Molecular Weight	613.0 g/mol
Synonyms	2,2'-Methylenebis(4,6-di-tert-butylphenol); Antioxidant 702; Ethanox 702; Irganox 1425; Bis(3,5-di-tert-butyl-4-hydroxybenzyl)mesitylene; 1,3,5-Trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene (common misnomer); Lowilite 22; Phenol, 4,4'-[(2,4,6-trimethyl-1,3-phenylene)bis(methylene)]bis[2,6-bis(1,1-dimethylethyl)-]
EINECS	255-462-8

Quality Control

Our production of 4,4'-[2,4,6-Trimethyl-1,3-Phenylenebis(Methylene)]Bis[2,6-Di(tert-Butyl)Phenol] adheres to a stringent quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications and industry benchmarks. Certificates of Analysis (COA) documenting all critical parameters are available upon request.

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 product is easily oxidized; for long-term storage, maintaining an inert atmosphere (e.g., under nitrogen) in the container headspace is recommended to preserve optimal efficacy.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Melting Point	160 - 165 °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.