Description

2-Mercapto-4,6-Di-tert-Butylphenol is a sterically hindered phenolic antioxidant and metal deactivator, valued for its ability to inhibit oxidative degradation and chelate metal ions in various polymer and hydrocarbon systems. Its primary commercial value lies in extending the service life and maintaining the performance integrity of sensitive materials exposed to heat, oxygen, and catalytic metals. This compound is essential for manufacturers in the polymer, lubricant, and fuel additive industries seeking to enhance product stability and longevity.

Application

• Polymer Stabilizer: Acts as a primary antioxidant and metal deactivator in polyolefins (e.g., polyethylene, polypropylene), polyurethanes, and synthetic rubbers to prevent thermal and oxidative degradation during processing and end-use.
• Lubricant & Grease Additive: Used in industrial oils, hydraulic fluids, and greases to inhibit oxidation and sludge formation, thereby extending equipment life and maintaining viscosity stability.
• Fuel & Gasoline Additive: Functions as an antioxidant in fuels and gasolines to prevent gum formation and oxidation during storage, improving fuel stability.
• Adhesive & Sealant Formulations: Incorporated to prevent premature curing and degradation of adhesive properties caused by heat and oxidation.
• Elastomer Protection: Protects synthetic elastomers like SBR and NBR from metal-catalyzed oxidation, preserving elasticity and mechanical properties.
• Transformer Oil Additive: Enhances the oxidative stability of insulating oils in electrical transformers.
• Intermediate for Specialty Chemicals: Serves as a key building block in the synthesis of more complex antioxidants and light stabilizers.

Basic Information

Product Name	2-Mercapto-4,6-Di-tert-Butylphenol
CAS No.	53551-74-9
Molecular Formula	C14H22OS
Molecular Weight	238.39 g/mol
Synonyms	2,4-Di-tert-butyl-6-mercaptophenol; 4,6-Di-tert-butyl-2-mercaptophenol; DBMP; Antioxidant 300; 2-Hydroxy-3,5-di-tert-butylbenzenethiol; Phenol, 2-mercapto-4,6-bis(1,1-dimethylethyl)-; 2-Mercapto-4,6-di-tert-butylphenol; Lowinox 22M46
EINECS	258-597-5

Quality Control

Our production of 2-Mercapto-4,6-Di-tert-Butylphenol adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including assay, purity profiling, and identification, to ensure it meets precise customer specifications and industry benchmarks. Certificates of Analysis (COA) documenting all critical quality attributes are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Due to its sensitivity to oxidation, it is recommended to store under an inert atmosphere (e.g., nitrogen) for long-term preservation. 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	61 - 65 °C
Loss on Drying	≤ 0.5 %
Residue on Ignition	≤ 0.1 %
Heavy Metals (as Pb)	≤ 10 ppm

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