Description

6,6'-(Pentane-1,1-Diyl)Bis(2-(tert-Butyl)-4-Methylphenol) is a high-performance, sterically hindered phenolic antioxidant. This compound is specifically engineered to inhibit oxidative degradation, thereby extending the service life and maintaining the properties of sensitive materials. It is a critical additive for manufacturers in the polymer, rubber, and specialty chemical industries who require reliable protection against thermal and oxidative stress. The product is supplied under stringent quality control to ensure batch-to-batch consistency and performance.

Application

This hindered phenol antioxidant is utilized across various industries where material stability is paramount. Its primary function is to scavenge free radicals and prevent oxidative chain reactions.

• Polymer Stabilization: As a primary antioxidant in polyolefins (PP, PE), engineering plastics, and synthetic rubbers to prevent thermal oxidation during processing and end-use.
• Rubber Industry: Protection of natural and synthetic rubber compounds (e.g., SBR, NBR) against aging, cracking, and loss of elasticity.
• Lubricants and Greases: Additive in industrial lubricants and hydraulic fluids to enhance oxidative stability and extend fluid life.
• Adhesives and Sealants: Prevents degradation and maintains adhesive properties in polyurethane, acrylic, and other polymer-based formulations.
• Fuel and Oil Additives: Used in gasoline and diesel additives to inhibit gum formation and stabilize fuels.
• Coating Resins: Stabilizer for alkyd, acrylic, and other coating resins to prevent yellowing and embrittlement.

Basic Information

Product Name	6,6'-(Pentane-1,1-Diyl)Bis(2-(tert-Butyl)-4-Methylphenol)
CAS No.	139184-57-9
Molecular Formula	C29H44O2
Molecular Weight	424.66 g/mol
Synonyms	Bis(2-tert-butyl-4-methyl-6-pentylphenol)methane; Antioxidant 1790; 1,1-Bis(3,5-di-tert-butyl-4-hydroxyphenyl)pentane; 2,2'-Methylenebis(6-tert-butyl-4-methylphenol) derivative; Phenol, 2-(1,1-dimethylethyl)-4-methyl-, 6,6'-(1,1-pentanediyl)bis-; Low volatility phenolic antioxidant; AO-1790; Bis-phenol antioxidant.
EINECS	Contact for details

Quality Control

Our production of 6,6'-(Pentane-1,1-Diyl)Bis(2-(tert-Butyl)-4-Methylphenol) adheres to a strict quality management system. Every batch is analyzed using advanced techniques like HPLC, GC, and NMR to confirm identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all critical parameters. Our quality commitment ensures the product meets the high standards required for industrial and specialty chemical applications.

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). This material is easily oxidized and should be stored under an inert atmosphere (e.g., nitrogen) for long-term storage to preserve efficacy. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0 %
Melting Point	155 - 165 °C
Loss on Drying	≤ 0.5 %
Heavy Metals (as Pb)	≤ 10 ppm
Residue on Ignition	≤ 0.1 %

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