Description

4-[(2S)-4,4-Bis(5-Cyclohexyl-4-Hydroxy-2-Methyl-Phenyl)Butan-2-Yl]-2-Cyclohexyl-5-Methyl-Phenol is a high-purity, sterically hindered phenolic compound of significant industrial interest. Its molecular structure provides excellent performance as an antioxidant and stabilizer, crucial for protecting materials from oxidative degradation. This product is essential for manufacturers in the polymer, specialty chemical, and lubricant additive sectors who require reliable, high-performance stabilization solutions.

Application

• Primary Antioxidant for Polymers: Used to inhibit thermal and oxidative degradation in polyolefins (e.g., PP, PE), engineering plastics, and synthetic rubbers during processing and end-use.
• Lubricant and Fuel Additive: Functions as an antioxidant in engine oils, industrial lubricants, greases, and fuels to extend service life and maintain performance under high-temperature conditions.
• Stabilizer for Adhesives and Sealants: Enhances the shelf-life and durability of adhesive formulations and sealants by preventing resin gelation and viscosity increase.
• Intermediate for Specialty Chemicals: Serves as a key synthetic building block for the production of more complex antioxidant and stabilizer molecules.
• Additive for Coatings and Paints: Protects coating formulations from skinning and degradation, ensuring color stability and film integrity.
• Stabilizer for Elastomers: Used in the production of synthetic elastomers to prevent chain scission and cross-linking during manufacturing and storage.

Basic Information

Product Name	4-[(2S)-4,4-Bis(5-Cyclohexyl-4-Hydroxy-2-Methyl-Phenyl)Butan-2-Yl]-2-Cyclohexyl-5-Methyl-Phenol
CAS No.	136602-17-0
Molecular Formula	C47H60O3
Molecular Weight	696.99 g/mol
Synonyms	2-Cyclohexyl-5-methyl-4-[(2S)-4,4-bis(5-cyclohexyl-4-hydroxy-2-methylphenyl)butan-2-yl]phenol; (2S)-4,4-Bis(5-cyclohexyl-4-hydroxy-2-methylphenyl)-2-(2-cyclohexyl-4-hydroxy-5-methylphenyl)butane; Phenol, 4-[(2S)-4,4-bis(5-cyclohexyl-4-hydroxy-2-methylphenyl)butan-2-yl]-2-cyclohexyl-5-methyl-; Sterically Hindered Phenolic Antioxidant; Asymmetric Hindered Phenol; High Molecular Weight Phenolic Stabilizer
EINECS	Contact for details

Quality Control

Our production of 4-[(2S)-4,4-Bis(5-Cyclohexyl-4-Hydroxy-2-Methyl-Phenyl)Butan-2-Yl]-2-Cyclohexyl-5-Methyl-Phenol adheres to a stringent quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and chiral integrity, GC for residual solvents, and spectroscopic identification. Certificates of Analysis (COA) detailing all specifications are provided to ensure traceability, consistency, and compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This product is easily oxidized; for long-term storage, maintaining an inert atmosphere (e.g., under nitrogen or argon) in the container headspace is recommended to preserve efficacy. 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%
Chiral Purity (HPLC)	≥ 99.0% (S-isomer)
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm
Residual Solvents (GC)	Meets ICH Q3C guidelines

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