Description

2,2'-Methylenebis[4-Chloro-5-Isopropyl-m-Cresol] is a high-performance phenolic antioxidant widely recognized for its excellent stabilizing properties. This compound is critical for protecting polymers and other sensitive materials from oxidative degradation, thereby extending their service life and maintaining performance integrity. It is an essential additive for manufacturers in the plastics, rubber, and lubricant industries who require reliable, long-term thermal and oxidative stability for their products.

Application

• Primary antioxidant in polyolefins (e.g., PP, PE) to prevent thermal oxidation during processing and end-use.
• Stabilizer for engineering plastics and synthetic rubbers to enhance durability and color retention.
• Additive in industrial lubricants and greases to inhibit oil oxidation and sludge formation.
• Stabilizing component in adhesives, sealants, and elastomers to improve weatherability.
• Used in the production of polymer resins and as a non-discoloring antioxidant in light-colored formulations.
• Potential intermediate for the synthesis of other specialized antioxidants and polymer additives.

Basic Information

Product Name	2,2'-Methylenebis[4-Chloro-5-Isopropyl-m-Cresol]
CAS No.	50992-46-6
Molecular Formula	C23H30Cl2O2
Molecular Weight	409.39 g/mol
Synonyms	2,2'-Methylenebis(4-chloro-6-isopropyl-m-cresol); 4,4'-Methylenebis(2-chloro-6-isopropyl-m-cresol); 2,2'-Methylenebis(4-chloro-6-isopropyl-3-methylphenol); Antioxidant 2246S; Antioxidant 2246-C; AO 2246S; Lowinox® 22M46; Nonox WSP; Bis(4-chloro-2-hydroxy-5-isopropyl-3-methylbenzyl)methane
EINECS	256-928-5

Quality Control

Our production of 2,2'-Methylenebis[4-Chloro-5-Isopropyl-m-Cresol] adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. The product is manufactured and tested in compliance with relevant industry standards. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and specific impurity profiles is provided with each shipment and is available upon request.

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
Assay (HPLC)	≥ 98.0 %
Melting Point	140 - 145 °C
Loss on Drying	≤ 0.5 %
Ash Content	≤ 0.1 %
Chlorine Content	Conforms to theoretical

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