Description

2,2'-(2-Methylpropylidene)Bis[6-(2-Methylpropyl)-p-Cresol] is a high-performance hindered phenolic antioxidant, widely recognized for its exceptional stability and efficacy. This compound is critical for preventing oxidative degradation and extending the service life of sensitive materials. It is an essential additive for manufacturers in the polymer, rubber, and lubricant industries who require reliable protection against thermal and oxidative stress.

Application

• Polymer Stabilization: Primary antioxidant for polyolefins (PP, PE), engineering plastics, and synthetic rubbers to prevent chain scission and discoloration during processing and end-use.
• Rubber Industry: Used in the production of tires, seals, and belts to protect against heat aging and maintain elastomeric properties.
• Lubricant & Grease Additive: Enhances the oxidative stability of industrial oils, transmission fluids, and synthetic lubricants, reducing sludge formation.
• Adhesive & Sealant Formulations: Protects organic components in hot-melt and reactive adhesives from degradation, ensuring consistent performance.
• Fuel & Petrochemical Additive: Acts as a stabilizer in fuels and hydrocarbon streams to inhibit gum and sediment formation.
• Co-additive Function: Often used synergistically with secondary antioxidants (e.g., phosphites, thioesters) for comprehensive stabilization packages.

Basic Information

Item	Detail
Product Name	2,2'-(2-Methylpropylidene)Bis[6-(2-Methylpropyl)-p-Cresol]
CAS No.	93893-70-0
Molecular Formula	C33H52O2
Molecular Weight	480.77 g/mol
Synonyms	2,2'-Isobutylidenebis(6-tert-butyl-4-methylphenol); Bis(6-tert-butyl-4-methyl-2-isopropylphenyl)methane; Antioxidant 2246-S; AO-2246S; 4,4'-Methylenebis(2,6-di-tert-butylphenol) derivative; Low volatility phenolic antioxidant; High molecular weight hindered phenol
EINECS	Contact for details

Quality Control

Our production of 2,2'-(2-Methylpropylidene)Bis[6-(2-Methylpropyl)-p-Cresol] adheres to stringent quality management systems. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, melting point, and color. A comprehensive Certificate of Analysis (COA) is provided with each shipment, detailing all critical parameters to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat sources and incompatible materials. Under these conditions, the product maintains optimal stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0 %
Melting Point	125 - 130 °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.