Description

2,6-Di-tert-Butyl-α-Mercapto-p-Cresol is a sterically hindered phenolic antioxidant and metal deactivator. This compound is valued for its ability to inhibit oxidative degradation and chelate metal ions that catalyze decomposition in various organic matrices. It is primarily needed by manufacturers in the polymer, lubricant, and fuel industries seeking to enhance product stability and longevity under demanding conditions.

Application

• Primary antioxidant and stabilizer in polyolefins (e.g., polyethylene, polypropylene) to prevent thermal and oxidative degradation during processing and service life.
• Metal deactivator and antioxidant additive in industrial lubricants, greases, and transformer oils to protect against copper-catalyzed oxidation.
• Stabilizer component in gasoline and jet fuels to prevent gum formation and improve storage stability.
• Intermediate in the synthesis of more complex phenolic antioxidants and specialty chemicals.
• Additive in adhesives, sealants, and elastomers to maintain performance properties over time.
• Stabilizing agent for certain technical-grade chemicals and monomers susceptible to oxidation.

Basic Information

Product Name	2,6-Di-tert-Butyl-α-Mercapto-p-Cresol
CAS No.	1620-48-0
Molecular Formula	C15H24OS
Molecular Weight	252.42 g/mol
Synonyms	2,6-Di-tert-butyl-4-mercaptophenol; 4-Hydroxy-3,5-di-tert-butylbenzenethiol; 2,6-Di-tert-butyl-p-thiocresol; 4-Mercapto-2,6-di-tert-butylphenol; Antioxidant 300; DBPC-Thiol; AO 300; 3,5-Di-tert-butyl-4-hydroxybenzenethiol
EINECS	216-602-6

Quality Control

Our production of 2,6-Di-tert-Butyl-α-Mercapto-p-Cresol adheres to stringent quality management protocols. Every batch is analyzed to ensure it meets precise chemical and physical specifications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided to guarantee consistency and support your quality assurance processes.

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.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0 %
Melting Point	62 - 66 °C
Loss on Drying	≤ 0.5 %
Sulfur Content	12.5 - 13.0 %

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