Description

2,2'-Dithiobis[4-tert-Butylphenol] is a high-purity organosulfur compound widely recognized for its role as an antioxidant and polymerization inhibitor. This chemical is critical for stabilizing materials against oxidative degradation, thereby extending product shelf life and performance under demanding conditions. It is essential for manufacturers in the polymer, rubber, and specialty chemical industries who require reliable, high-performance additives for their formulations.

Application

• Polymer Stabilizer: Acts as an effective antioxidant and light stabilizer in polyolefins (e.g., polyethylene, polypropylene) and other polymers to prevent thermal and UV-induced degradation during processing and service life.
• Rubber Industry: Used as a non-staining antioxidant in synthetic rubbers and elastomers to protect against oxidation and maintain mechanical properties.
• Lubricant & Fuel Additive: Serves as an antioxidant additive in industrial lubricants, greases, and fuels to inhibit oxidation and sludge formation.
• Chemical Intermediate: Utilized in the synthesis of more complex antioxidants, pharmaceuticals, and other specialty chemicals requiring a hindered phenol disulfide structure.
• Adhesive & Sealant Formulations: Incorporated to enhance the oxidative stability and longevity of adhesive and sealant products.

Basic Information

Product Name	2,2'-Dithiobis[4-tert-Butylphenol]
CAS No.	19614-80-3
Molecular Formula	C20H26O2S2
Molecular Weight	362.55 g/mol
Synonyms	2,2'-Dithiobis(4-tert-butylphenol); 4,4'-Thiobis(2-tert-butylphenol) disulfide; Bis(4-tert-butyl-2-hydroxyphenyl) disulfide; 4-tert-Butyl-2,2'-dihydroxydiphenyl disulfide; Antioxidant 736; Phenol, 4-(1,1-dimethylethyl)-2-[[[4-(1,1-dimethylethyl)-2-hydroxyphenyl]thio]thio]-; Lowilite 36
EINECS	243-178-5

Quality Control

Our 2,2'-Dithiobis[4-tert-Butylphenol] is produced under a stringent quality management system. Each batch undergoes comprehensive analytical testing, including assay, identification, and impurity profiling, to ensure it meets the high standards required for industrial and specialty applications. A Certificate of Analysis (COA) documenting purity, physical properties, and test results is provided with every shipment.

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 material is easily oxidized; for long-term storage, consider maintaining under an inert atmosphere (e.g., nitrogen) to preserve efficacy. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0 %
Melting Point	155 - 160 °C
Loss on Drying	≤ 0.5 %
Heavy Metals (as Pb)	≤ 20 ppm

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