Description

4,4'-(1,1-Ethanediyl)Bis(2,6-Dimethylphenol) is a high-purity sterically hindered phenolic compound, primarily valued for its excellent antioxidant properties. This compound is critical for applications requiring the stabilization of materials against oxidative degradation and thermal stress. It serves as a key intermediate and additive in the polymer, specialty chemical, and pharmaceutical industries, where consistent quality and reliable supply are paramount.

Application

• Polymer Stabilizer: Acts as a highly effective antioxidant and thermal stabilizer in the production of polyolefins, polyesters, and engineering plastics to extend product lifespan.
• Rubber Industry: Used as an antioxidant in synthetic rubber formulations to prevent aging and maintain elasticity.
• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs).
• Lubricant & Fuel Additive: Incorporated into lubricating oils, greases, and fuels to inhibit oxidation and sludge formation.
• Specialty Chemical Synthesis: Utilized as a precursor for synthesizing other advanced antioxidants, UV stabilizers, and specialty phenolic resins.
• Adhesives and Sealants: Enhances the thermal-oxidative stability of high-performance adhesive and sealant formulations.

Basic Information

Product Name	4,4'-(1,1-Ethanediyl)Bis(2,6-Dimethylphenol)
CAS No.	57100-83-1
Molecular Formula	C20H26O2
Molecular Weight	298.42 g/mol
Synonyms	Ethylidenebis(2,6-dimethylphenol); 2,2'-Ethylidenebis(4,6-dimethylphenol); 4,4'-Ethylidenebis(2,6-dimethylphenol); Bis(4-hydroxy-3,5-dimethylphenyl)ethane; Antioxidant 702; EBP; EDBP; Phenol, 4,4'-(1-ethylidene)bis[2,6-dimethyl-]
EINECS	260-522-9

Quality Control

Our production of 4,4'-(1,1-Ethanediyl)Bis(2,6-Dimethylphenol) adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting customer specifications and industry standards. 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). Due to its sensitivity to oxidation, it is recommended to store under an inert atmosphere for long-term preservation. 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	158°C - 162°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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