Description

2,2'-Thiobis[4-tert-Pentylphenol] is a specialized phenolic antioxidant and chemical intermediate. This compound matters for its ability to inhibit oxidative degradation, thereby extending the service life and stability of various materials. It is primarily needed by manufacturers in the polymer, rubber, and lubricant industries seeking to protect their products from thermal and oxidative stress.

Application

• Primary antioxidant and stabilizer in polyolefins (e.g., polyethylene, polypropylene).
• Additive in rubber formulations to prevent aging and maintain elasticity.
• Stabilizing component in industrial lubricants and greases to enhance thermal-oxidative stability.
• Intermediate in the synthesis of more complex polymer additives and specialty chemicals.
• Protective agent in adhesives and sealants to improve shelf life and performance.
• Used in the stabilization of certain fuels and hydrocarbon-based fluids.

Basic Information

Product Name	2,2'-Thiobis[4-tert-Pentylphenol]
CAS No.	98-26-0
Molecular Formula	C22H30O2S
Molecular Weight	358.54 g/mol
Synonyms	2,2'-Thiobis(4-tert-amylphenol); 4,4'-Thiobis(2-tert-amylphenol); 2,2'-Thiobis(4-(1,1-dimethylpropyl)phenol); Phenol, 2,2'-thiobis[4-(1,1-dimethylpropyl)-; Antioxidant 300; AO 300; Santonox R; CAS 98-26-0
EINECS	202-650-7

Quality Control

Our 2,2'-Thiobis[4-tert-Pentylphenol] is produced under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity and performance. Certificates of Analysis (COA) documenting key parameters are 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). This material is easily oxidized; prolonged storage under an inert atmosphere (e.g., nitrogen) is recommended for optimal long-term stability. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0 %
Melting Point	80 - 85 °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.