Description

2,2'-(2-Methylpropylidene)Bis[6-Cyclopentyl-p-Cresol] is a high-performance, sterically hindered phenolic antioxidant. This compound is critical for preventing oxidative degradation and extending the service life of polymers and synthetic materials. It is primarily needed by manufacturers in the polymer, rubber, and lubricant industries seeking to enhance the thermal and oxidative stability of their products.

Application

• Primary antioxidant in polyolefins (PP, PE) and engineering plastics to prevent thermal-oxidative degradation during processing and end-use.
• Stabilizer for synthetic rubbers and elastomers, including SBR, BR, and NBR, to protect against aging and maintain mechanical properties.
• Additive in lubricating oils, greases, and hydraulic fluids to inhibit oxidation and sludge formation, extending fluid life.
• Stabilizing component in adhesive and sealant formulations to prevent viscosity increase and loss of adhesion over time.
• Protective agent for hydrocarbon-based fuels and biofuels to improve storage stability.
• Used in the production of food-grade polymer packaging where compliant antioxidant systems are required.

Basic Information

Product Name	2,2'-(2-Methylpropylidene)Bis[6-Cyclopentyl-p-Cresol]
CAS No.	93892-46-7
Molecular Formula	C33H48O2
Molecular Weight	476.74 g/mol
Synonyms	Bis(6-cyclopentyl-2-methyl-4-hydroxyphenyl)methane; 2,2'-Methylenebis(6-cyclopentyl-4-methylphenol); Antioxidant 93892-46-7; Phenolic antioxidant 93892; 4,4'-Methylenebis(2-cyclopentyl-6-methylphenol); Bis(6-cyclopentyl-4-methyl-2-hydroxyphenyl)methane; Low volatility phenolic antioxidant; AO-93892
EINECS	Contact for details

Quality Control

Our production of 2,2'-(2-Methylpropylidene)Bis[6-Cyclopentyl-p-Cresol] adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing to ensure consistent purity, performance, and compliance with relevant industry specifications. Certificates of Analysis (COA) documenting key parameters such as assay, melting point, and impurity profile are available upon request.

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 nature as an organic compound that 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 to reference spectrum
Assay (HPLC)	≥ 98.0 %
Melting Point	115 - 125 °C
Loss on Drying	≤ 0.5 %
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0%

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