Description

2,2'-Methylenebis[4,6-Diisopropylphenol] 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 polymers and other sensitive materials. It is a critical additive for manufacturers in the plastics, rubber, and specialty chemical industries seeking to enhance product stability and performance under demanding conditions.

Application

• Primary Antioxidant in Polymers: Used to stabilize polyolefins (PP, PE), engineering plastics, and synthetic rubbers against thermal-oxidative degradation during processing and long-term use.
• Additive in Lubricants and Fuels: Functions as an antioxidant in industrial lubricants, greases, and fuel formulations to prevent sludge formation and viscosity increase.
• Stabilizer for Adhesives and Sealants: Protects adhesive resins and sealant formulations from premature aging and loss of mechanical properties.
• Intermediate for Specialty Chemicals: Serves as a key building block in the synthesis of more complex antioxidants and polymer additives.
• Stabilizer in Elastomers: Enhances the heat aging resistance of SBR, NBR, and other elastomers used in automotive and industrial components.

Basic Information

Product Name	2,2'-Methylenebis[4,6-Diisopropylphenol]
CAS No.	93803-61-3
Molecular Formula	C29H44O2
Molecular Weight	424.66 g/mol
Synonyms	2,2'-Methylenebis(4,6-diisopropylphenol); Bis(4,6-diisopropyl-2-hydroxyphenyl)methane; 4,4'-Methylenebis(2,6-diisopropylphenol); Antioxidant 702; Phenol, 2,2'-methylenebis[4,6-bis(1-methylethyl)-; Lowinox® 22M46; BNX® 702; AO-6
EINECS	Contact for details

Quality Control

Our production of 2,2'-Methylenebis[4,6-Diisopropylphenol] adheres to strict quality management protocols. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications and industry benchmarks. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with each shipment.

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. The product is light-sensitive and should be stored away from light.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Melting Point	155 - 165 °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.