Description

2,2'-Methylenebis[6-tert-Butyl-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 susceptible to thermal and oxidative stress. It is a critical additive for manufacturers in the polymer, rubber, and lubricant industries seeking to enhance product stability and durability.

Application

• Primary antioxidant in polyolefins (PP, PE) and other polymers to prevent thermal-oxidative degradation during processing and end-use.
• Stabilizer for synthetic rubbers and elastomers to maintain mechanical properties and prevent cracking.
• Additive in lubricating oils, greases, and hydraulic fluids to inhibit oxidation and sludge formation.
• Stabilizing component in adhesives, sealants, and coatings to improve shelf-life and performance.
• Used in the production of food-grade polymers where compliant antioxidant protection is required.
• Intermediate in the synthesis of other specialized antioxidant compounds.

Basic Information

Product Name	2,2'-Methylenebis[6-tert-Butyl-4-Isopropylphenol]
CAS No.	93840-39-2
Molecular Formula	C29H44O2
Molecular Weight	424.66 g/mol
Synonyms	2,2'-Methylenebis(6-tert-butyl-4-isopropylphenol); Antioxidant 702; Bis(2-hydroxy-3-tert-butyl-5-isopropylphenyl)methane; Phenol, 2,2'-methylenebis[6-(1,1-dimethylethyl)-4-(1-methylethyl)-; 4,4'-Methylenebis(2-isopropyl-6-tert-butylphenol); AO-702; Lowinox® 22M46; Ethanox® 702
EINECS	Contact for details

Quality Control

Our production of 2,2'-Methylenebis[6-tert-Butyl-4-Isopropylphenol] adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for assay and purity, to ensure it meets precise specifications for color, melting point, and phenolic content. Certificates of Analysis (COA) documenting full compliance are 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). This material is easily oxidized; for long-term storage, maintaining an inert atmosphere (e.g., under nitrogen) 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 standard
Assay (HPLC)	≥ 98.0 %
Melting Point	120 - 125 °C
Loss on Drying	≤ 0.5 %
Ash Content	≤ 0.1 %
Color (APHA)	≤ 50

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