Description

2,2'-Thiobis[4-tert-Butyl-6-Cyclohexylphenol] is a high-performance, sterically hindered phenolic antioxidant. This compound matters because it provides exceptional long-term thermal and oxidative stability to polymers and synthetic materials, preventing degradation and extending product lifespan. It is primarily needed by manufacturers in the plastics, rubber, and synthetic fiber industries, as well as formulators of lubricants and fuels.

Application

• Primary antioxidant for polyolefins (PP, PE) to prevent thermal oxidation during processing and service.
• Stabilizer for engineering plastics and synthetic rubbers to maintain mechanical properties.
• Additive in lubricating oils and greases to inhibit oxidation and sludge formation.
• Stabilizing component in hot-melt adhesives and sealants.
• Protective agent for synthetic fibers against UV and thermal degradation.
• Antioxidant for elastomers like SBR and EPDM in automotive and industrial parts.
• Stabilizer in paraffin waxes and other hydrocarbon-based products.

Basic Information

Product Name	2,2'-Thiobis[4-tert-Butyl-6-Cyclohexylphenol]
CAS No.	93840-41-6
Molecular Formula	C32H46O2S
Molecular Weight	494.77 g/mol
Synonyms	2,2'-Thiobis(4-tert-butyl-6-cyclohexylphenol); Bis(4-tert-butyl-6-cyclohexyl-2-hydroxyphenyl) Sulfide; Phenol, 2,2'-thiobis[4-(1,1-dimethylethyl)-6-cyclohexyl-; Antioxidant 300; Antioxidant AO-300; Lowinox® 300; Irganox® 300; Cyanox® 300; AO-300; 4,4'-Thiobis(2-tert-butyl-5-cyclohexylphenol)
EINECS	Contact for details

Quality Control

Our 2,2'-Thiobis[4-tert-Butyl-6-Cyclohexylphenol] is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets the high-purity standards required for industrial applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and physical parameters is available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, 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 to standard
Assay (HPLC)	≥ 98.0%
Melting Point	125°C - 135°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.