Description

3,3'-Methylenebis[2,4,6-Trimethylphenol] is a sterically hindered phenolic compound widely recognized for its excellent antioxidant properties. It serves as a highly effective stabilizer and chain-terminating agent in polymer systems, preventing oxidative degradation and extending material lifespan. This product is essential for manufacturers in the polymer, lubricant, and specialty chemical industries seeking to enhance the thermal and oxidative stability of their formulations.

Application

• Polymer Stabilizer: Primary antioxidant for polyolefins (e.g., PP, PE), engineering plastics, and synthetic rubbers to prevent thermal and oxidative degradation during processing and service life.
• Lubricant & Fuel Additive: Antioxidant component in engine oils, industrial lubricants, greases, and fuels to inhibit sludge formation and viscosity increase.
• Adhesive & Sealant Formulations: Used to improve the aging resistance and durability of hot-melt adhesives, epoxy resins, and polyurethane systems.
• Elastomer Protection: Stabilizer for synthetic elastomers like SBR, NBR, and EPDM against heat and oxygen-induced cracking and hardening.
• Coating Additive: Incorporated into paints and coatings to protect the binder from yellowing and embrittlement caused by UV and thermal exposure.
• Chemical Intermediate: Serves as a key building block in the synthesis of more complex hindered phenol antioxidants and other specialty chemicals.

Basic Information

Product Name	3,3'-Methylenebis[2,4,6-Trimethylphenol]
CAS No.	115498-94-7
Molecular Formula	C23H32O2
Molecular Weight	340.50 g/mol
Synonyms	2,2'-Methylenebis(4,6-dimethylphenol); Bis(2-hydroxy-3,5-dimethylbenzyl)methane; Antioxidant 2246-S; 4,4'-Methylenebis(2,6-dimethylphenol); Phenol, 2,2'-methylenebis[4,6-dimethyl-; Lowilite 26S; AO-2246
EINECS	Contact for details

Quality Control

Our production of 3,3'-Methylenebis[2,4,6-Trimethylphenol] adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for assay and purity, to ensure it meets precise customer specifications and consistent performance. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat sources and incompatible materials. Due to its light-sensitive nature, the original container should be kept sealed until use to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0 %
Melting Point	150 - 155 °C
Loss on Drying	≤ 0.5 %
Heavy Metals	≤ 20 ppm

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