Description

2,2'-Dithiobis[6-(1,1-Dimethylethyl)-4-Methylphenol] is a high-performance phenolic antioxidant and sulfur-based stabilizer. It matters for its exceptional ability to inhibit oxidative degradation and thermal aging in a wide range of polymeric materials, thereby extending product lifespan and maintaining performance. This compound is essential for manufacturers in the polymer, rubber, and lubricant industries who require reliable protection against degradation under demanding conditions.

Application

• Polymer Stabilization: Primary antioxidant for polyolefins (PP, PE), polyamides, and other engineering plastics to prevent thermal and oxidative degradation during processing and end-use.
• Rubber Industry: Critical antioxidant and antiozonant in the production of synthetic rubbers (SBR, BR, NBR) and tires to prevent cracking and maintain elasticity.
• Lubricant & Grease Additive: Used as an antioxidant in industrial lubricants, transmission fluids, and greases to enhance oxidative stability and service life.
• Adhesive & Sealant Formulations: Protects adhesive polymers from degradation, ensuring long-term bond strength and durability.
• Food Contact Materials: Employed as a stabilizer in polymers intended for food packaging where regulatory compliance is required.
• Fuel Additive: Acts as an antioxidant in gasoline and diesel to improve fuel stability and prevent gum formation.

Basic Information

Product Name	2,2'-Dithiobis[6-(1,1-Dimethylethyl)-4-Methylphenol]
CAS No.	1620-66-2
Molecular Formula	C22H30O2S2
Molecular Weight	390.60 g/mol
Synonyms	2,2'-Thiobis(6-tert-butyl-4-methylphenol); Bis(6-tert-butyl-4-methyl-2-hydroxyphenyl) Disulfide; Antioxidant 2246-S; 4,4'-Thiobis(2-tert-butyl-5-methylphenol); AO 2246-S; Santonox TBMC; Lowinox 22M46; 6,6'-Di-tert-butyl-2,2'-thiodi-p-cresol; 2,2'-Dithiobis(6-tert-butyl-4-methylphenol)
EINECS	216-602-5

Quality Control

Our production of 2,2'-Dithiobis[6-(1,1-Dimethylethyl)-4-Methylphenol] adheres to stringent quality management systems. Every batch undergoes rigorous analytical testing to ensure compliance with industry specifications for purity, performance, and consistency. Certificates of Analysis (COA) documenting key parameters are available upon request to support your quality assurance protocols.

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 strong oxidizing agents and heat sources.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0 %
Melting Point	80 - 85 °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.