Description

2,2'-Thiobis[4-Chloro-6-Isopropyl-m-Cresol] is a high-performance phenolic antioxidant and stabilizer, widely recognized for its effectiveness in protecting polymers and other materials from oxidative degradation. Its primary value lies in its ability to extend the service life and maintain the physical properties of sensitive formulations under demanding conditions. This compound is essential for manufacturers in the plastics, rubber, and lubricant industries seeking reliable protection against thermal and oxidative stress.

Application

• Polymer Stabilization: A key antioxidant for polyolefins (e.g., polyethylene, polypropylene), synthetic rubbers, and adhesives to prevent chain scission and discoloration during processing and long-term use.
• Lubricant & Grease Additive: Used in industrial oils and greases to inhibit oxidation, reduce sludge formation, and extend oil drain intervals.
• Fuel & Petroleum Product Stabilizer: Prevents gum formation and oxidative degradation in fuels, transformer oils, and other hydrocarbon-based fluids.
• Elastomer Protection: Imparts aging resistance to styrene-butadiene rubber (SBR), nitrile rubber (NBR), and other elastomers used in automotive and industrial components.
• Hot Melt Adhesives: Stabilizes adhesive formulations against thermal degradation during high-temperature application.
• Wire & Cable Insulation: Protects the polymer insulation in electrical cables from oxidative breakdown, ensuring long-term performance and safety.

Basic Information

Product Name	2,2'-Thiobis[4-Chloro-6-Isopropyl-m-Cresol]
CAS No.	64633-23-4
Molecular Formula	C20H24Cl2O2S
Molecular Weight	399.37 g/mol
Synonyms	2,2'-Thiobis(4-chloro-6-isopropyl-3-methylphenol); 4,4'-Thiobis(2-chloro-6-isopropyl-m-cresol); Antioxidant 300; Irganox 300; Lowinox 22M46; AO 300; Bis(4-chloro-6-isopropyl-3-methyl-2-hydroxyphenyl) sulfide; 2,2'-Thiobis(4-chloro-6-isopropyl-m-cresol)
EINECS	264-951-1

Quality Control

Our production of 2,2'-Thiobis[4-Chloro-6-Isopropyl-m-Cresol] adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including assay, impurity profiling, and confirmation of physical properties, to ensure consistency and compliance with customer specifications. Certificates of Analysis (COA) documenting purity, melting point, and other critical parameters are available for all shipments.

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 light-sensitive (store away from light) and easily oxidized (store under inert atmosphere). Keep away from strong oxidizing agents and heat sources.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0 %
Melting Point	158 - 162 °C
Loss on Drying	≤ 0.5 %
Ash Content	≤ 0.1 %
Chlorine Content	Conforms to theoretical

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