Description

2,2'-Thiobis[4,6-Xylenol] is a high-purity phenolic antioxidant and chemical intermediate. This compound is valued for its ability to inhibit oxidative degradation and act as a stabilizer in various polymer and chemical synthesis processes. It is primarily required by manufacturers in the polymer, rubber, and specialty chemical industries seeking to enhance product longevity and performance under demanding conditions.

Application

• Primary antioxidant and stabilizer in polyolefins (e.g., polyethylene, polypropylene).
• Stabilizing agent for synthetic rubbers and elastomers to prevent aging.
• Intermediate in the synthesis of more complex antioxidants and specialty chemicals.
• Additive in lubricants and greases to improve oxidative stability.
• Stabilizer component in adhesives and sealants.
• Used in research and development for novel polymer formulations.

Basic Information

Product Name	2,2'-Thiobis[4,6-Xylenol]
CAS No.	18508-61-7
Molecular Formula	C16H18O2S
Molecular Weight	274.38 g/mol
Synonyms	2,2'-Thiobis(4,6-dimethylphenol); 4,4'-Thiobis(2,6-dimethylphenol); Antioxidant 2246-S; Bis(2-hydroxy-3,5-dimethylphenyl) sulfide; 2,2'-Dihydroxy-3,3',5,5'-tetramethyldiphenyl sulfide; Phenol, 2,2'-thiobis[4,6-dimethyl-; Lowinox® 22M46; AO-2246
EINECS	242-411-8

Quality Control

Our 2,2'-Thiobis[4,6-Xylenol] is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets precise specifications for identity, purity, and performance. A Certificate of Analysis (COA) detailing all test results is provided with each shipment and is available upon request.

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 incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0%
Melting Point	155 - 160 °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.