Description

2-Cyclohexyl-6-(1,1-dimethylethyl)-4-methylphenol is a sterically hindered phenolic antioxidant, a critical class of compounds used to inhibit oxidative degradation in various materials. Its molecular structure provides excellent performance as a free radical scavenger, protecting polymers and other organic substances from thermal and oxidative breakdown. This product is essential for manufacturers in the polymer, lubricant, and fuel industries seeking to enhance the longevity and stability of their formulations.

Application

This hindered phenol antioxidant is utilized across multiple industries to prevent oxidative damage and extend product life. Key application areas include:

• Polymer Stabilization: Primary antioxidant for polyolefins (PP, PE), elastomers, and engineering plastics to prevent thermal-oxidative degradation during processing and service life.
• Lubricant & Grease Additive: Used in industrial and automotive lubricants, hydraulic fluids, and greases to inhibit oil oxidation, reduce sludge formation, and extend drain intervals.
• Fuel & Petrochemical Additive: Acts as a stabilizer in gasoline, diesel, and other hydrocarbon fuels to prevent gum formation and maintain fuel quality during storage.
• Adhesive & Sealant Formulations: Enhances the shelf-life and thermal stability of hot-melt adhesives, sealants, and caulking compounds.
• Rubber Industry: Protects synthetic and natural rubber compounds against heat aging and flex-cracking.
• Coating & Ink Stabilizer: Provides antioxidant protection in solvent-based and oil-based coating systems to prevent skinning and viscosity increase.

Basic Information

Product Name	2-Cyclohexyl-6-(1,1-dimethylethyl)-4-methylphenol
CAS No.	51806-69-0
Molecular Formula	C₁₇H₂₆O
Molecular Weight	246.39 g/mol
Synonyms	4-Methyl-2,6-dicyclohexylphenol; 2,6-Dicyclohexyl-4-methylphenol; 2,6-Dicyclohexyl-p-cresol; Antioxidant 246; Phenol, 2,6-dicyclohexyl-4-methyl-; Phenol, 2-cyclohexyl-6-(1,1-dimethylethyl)-4-methyl-; Lowinox® 22IB46; Irganox® L 135
EINECS	257-440-5

Quality Control

Our production of 2-Cyclohexyl-6-(1,1-dimethylethyl)-4-methylphenol adheres to stringent quality management systems. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications and industry standards. Certificates of Analysis (COA) documenting all critical quality attributes 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 a controlled room temperature (15-25°C). This material is easily oxidized; for long-term storage, maintaining an inert atmosphere (e.g., under nitrogen) is recommended to preserve product integrity. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.5%
Melting Point	125 - 130 °C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm
Residue on Ignition	≤ 0.1%

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