Description

2,2'-Methylenebis[6-Cyclopentyl-4-Isopropylphenol] is a high-performance, sterically hindered phenolic antioxidant. This compound is valued for its exceptional ability to inhibit oxidative degradation and extend the service life of materials exposed to heat and oxygen. It is primarily needed by manufacturers in the polymer, rubber, and specialty lubricant industries seeking to enhance the thermal stability and longevity of their products.

Application

This antioxidant is engineered for demanding applications where long-term thermal stability is critical. Its primary uses include:

• Polymer Stabilization: As a primary antioxidant in polyolefins (PP, PE), engineering plastics, and synthetic rubbers to prevent thermal-oxidative degradation during processing and end-use.
• Rubber Industry: Protection of synthetic elastomers like SBR, BR, and NBR against aging, maintaining elasticity and mechanical properties.
• Lubricant & Grease Additive: Enhancing the oxidative stability of synthetic and mineral-based lubricants, transmission fluids, and industrial greases.
• Adhesive & Sealant Formulations: Preventing the degradation of polymeric components in high-performance adhesives and sealants.
• Fuel & Petrochemical Additives: Acting as a stabilizer in fuels and certain petrochemical intermediates to inhibit gum formation.
• Coating Systems: Providing long-term stability to polymer binders in protective coatings, especially for high-temperature environments.

Basic Information

Product Name	2,2'-Methylenebis[6-Cyclopentyl-4-Isopropylphenol]
CAS No.	93803-58-8
Molecular Formula	C31H44O2
Molecular Weight	448.68 g/mol
Synonyms	2,2'-Methylenebis(6-cyclopentyl-4-isopropylphenol); Bis(6-cyclopentyl-4-isopropyl-2-hydroxyphenyl)methane; Antioxidant 93803-58-8; Phenolic antioxidant (cyclopentyl substituted); 4,4'-Methylenebis(2-cyclopentyl-6-isopropylphenol) (isomer); Low-color phenolic antioxidant; AO-93803-58-8
EINECS	Contact for details

Quality Control

Our production of 2,2'-Methylenebis[6-Cyclopentyl-4-Isopropylphenol] adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing, including HPLC for assay and purity, to ensure consistency and compliance with customer specifications. Certificates of Analysis (COA) documenting key parameters are available upon request to support your quality assurance and regulatory 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). Keep away from heat sources and incompatible materials. Under these conditions, the product remains stable for extended periods.

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 %
Ash Content	≤ 0.1 %

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