Description

Bis(4-tert-Butyl-3-Methylphenyl) Sulfide is a high-purity, diaryl sulfide compound with a symmetrical molecular structure. This specialty chemical serves as a critical intermediate and performance additive, valued for its thermal stability and compatibility with polymer systems. It is primarily utilized by manufacturers in the polymer, lubricant, and specialty chemical synthesis industries seeking to enhance product longevity and performance under demanding conditions.

Application

• Polymer Additive: Acts as an antioxidant and stabilizer in polyolefins (e.g., polyethylene, polypropylene) to prevent thermal degradation during processing and extend service life.
• Lubricant Formulation: Used as an extreme pressure (EP) additive and anti-wear agent in advanced synthetic lubricants and greases.
• Chemical Intermediate: Serves as a key building block in the synthesis of more complex sulfur-containing compounds for pharmaceuticals and agrochemicals.
• Rubber Industry: Functions as a vulcanization accelerator or a non-staining antioxidant in the production of specialty elastomers.
• Photoresist Components: Employed in the electronics industry for the synthesis of photoacid generators (PAGs) used in advanced photoresists for semiconductor manufacturing.
• Fuel & Oil Additive: Contributes to deposit control and oxidation inhibition in fuels and industrial oils.

Basic Information

Product Name	Bis(4-tert-Butyl-3-Methylphenyl) Sulfide
CAS No.	63979-95-3
Molecular Formula	C22H30S
Molecular Weight	326.54 g/mol
Synonyms	2,2'-Dithiobis(1-methyl-4-tert-butylbenzene); 4,4'-Thiobis(2-tert-butyl-5-methylphenol) (related oxidized form); Di(4-tert-butyl-3-methylphenyl) Sulfide; Bis(4-tert-butyl-3-methylphenyl) Thioether; 3,3'-Di-tert-butyl-5,5'-dimethyldiphenyl Sulfide; Sulfur-bridged Di-tert-butyl Xylene; Antioxidant 300 (common trade designation); DTBMPS
EINECS	Contact for details

Quality Control

Our production of Bis(4-tert-Butyl-3-Methylphenyl) Sulfide adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via FT-IR and GC-MS, to ensure it meets precise customer specifications and industry standards. Certificates of Analysis (COA) documenting all critical parameters are available upon request.

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.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Melting Point	95 - 100 °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.