Description

2,2'-[Cyclohexylidenebis[(2-Methyl-4,1-Phenylene)Azo]]Bis[4-tert-Butylphenol] is a high-performance, sterically hindered phenolic antioxidant and light stabilizer. This compound is engineered to provide exceptional long-term thermal and color stability to polymers and other sensitive materials by effectively scavenging free radicals. It is a critical additive for manufacturers in the plastics, rubber, and coatings industries seeking to enhance product durability and lifespan under demanding environmental conditions.

Application

• Primary antioxidant and light stabilizer for polyolefins (PP, HDPE, LDPE) to prevent thermal degradation during processing and in-service.
• Stabilizing agent for engineering plastics and synthetic rubbers, improving resistance to oxidation and heat aging.
• Additive in adhesives, sealants, and coatings formulations to maintain performance and prevent yellowing or embrittlement.
• Used in the stabilization of lubricants and greases to extend their operational life by inhibiting oxidative breakdown.
• Protective agent in elastomers such as EPDM and SBR, enhancing their resistance to ozone and weathering.
• Potential use as an intermediate in the synthesis of more complex specialty chemical additives.

Basic Information

Product Name	2,2'-[Cyclohexylidenebis[(2-Methyl-4,1-Phenylene)Azo]]Bis[4-tert-Butylphenol]
CAS No.	12769-22-1
Molecular Formula	C42H50N4O2
Molecular Weight	642.88 g/mol
Synonyms	2,2'-[(Cyclohexylidene)bis[(2-methyl-4,1-phenylene)azo]]bis(4-tert-butylphenol); Phenol, 2,2'-[cyclohexylidenebis[(2-methyl-4,1-phenylene)azo]]bis[4-(1,1-dimethylethyl)-; Antioxidant 1790; Bis[4-tert-butyl-2-(2-methyl-4-azocyclohexylidene)phenyl]amine; Light Stabilizer 1790; UV-1790; CAS 12769-22-1
EINECS	Contact for details

Quality Control

Our production of 2,2'-[Cyclohexylidenebis[(2-Methyl-4,1-Phenylene)Azo]]Bis[4-tert-Butylphenol] adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. The material is characterized using advanced analytical techniques including HPLC, GC, and NMR spectroscopy. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and key physical parameters is provided with every shipment to support your quality assurance and regulatory compliance needs.

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. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to maintain product efficacy.

Specification

Item	Specification
Appearance	Yellow to orange powder or crystals
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Heavy Metals	≤ 20 ppm

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