Description

2,2'-(2-Methylpropylidene)Bis[4,6-Diisopropylphenol] is a high-performance sterically hindered phenolic compound, widely recognized for its excellent antioxidant properties. Its primary value lies in its ability to inhibit oxidative degradation, thereby extending the service life and stability of sensitive materials. This product is essential for manufacturers in the polymer, lubricant, and specialty chemical industries seeking to enhance product durability and performance under demanding conditions.

Application

• Primary antioxidant and stabilizer in polyolefins (e.g., PP, PE) and other polymers.
• Additive in lubricating oils and greases to prevent oxidation and sludge formation.
• Stabilizing agent in adhesives, sealants, and elastomers to prevent premature aging.
• Intermediate in the synthesis of more complex antioxidant and pharmaceutical compounds.
• Protective additive in fuels and industrial fluids to enhance oxidative stability.
• Used in the production of high-performance rubber and thermoplastic materials.

Basic Information

Product Name	2,2'-(2-Methylpropylidene)Bis[4,6-Diisopropylphenol]
CAS No.	93803-59-9
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; Irganox® 1425 (related class); Ethanox® 702; AO-702
EINECS	Contact for details

Quality Control

Our production of 2,2'-(2-Methylpropylidene)Bis[4,6-Diisopropylphenol] adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing to ensure consistent purity, identity, and performance. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical specifications is provided with each shipment to guarantee compliance with your technical requirements.

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 reference spectrum
Assay (HPLC)	≥ 98.0 %
Melting Point	155 - 165 °C
Loss on Drying	≤ 0.5 %
Heavy Metals (as Pb)	≤ 10 ppm

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