Description

2,4,6-Tris-(3,5-Di-tert-Butyl-4-Hydroxybenzyl)Phenol 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 polymers and other materials. It is a critical additive for manufacturers in the plastics, rubber, and specialty chemical industries seeking to enhance product stability and durability under demanding conditions.

Application

• Polymer Stabilization: Primary antioxidant for polyolefins (PP, PE), polystyrene, and engineering plastics to prevent thermal and oxidative degradation during processing and end-use.
• Rubber Industry: Protects synthetic rubbers (SBR, BR, NBR) and natural rubber from aging, maintaining elasticity and mechanical properties.
• Adhesives & Sealants: Enhances the shelf-life and performance stability of hot-melt, pressure-sensitive, and structural adhesives.
• Lubricants & Fuels: Used as an antioxidant additive in industrial lubricants, greases, and fuels to prevent sludge formation and viscosity increase.
• Coating Resins: Stabilizes alkyd resins and other coating formulations against yellowing and embrittlement caused by oxidation.
• Elastomers & Fibers: Imparts long-term aging resistance to synthetic fibers and various elastomeric products.
• Masterbatch Production: A key active component in antioxidant and stabilizer concentrate masterbatches for simplified compounding.
• Intermediate Synthesis: Serves as a building block for the synthesis of more complex, multifunctional stabilizer systems.

Basic Information

Product Name	2,4,6-Tris-(3,5-Di-tert-Butyl-4-Hydroxybenzyl)Phenol
CAS No.	6010-34-0
Molecular Formula	C54H78O4
Molecular Weight	791.20 g/mol
Synonyms	Phenol, 2,4,6-tris[(3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl)methyl]-; Tris(3,5-di-tert-butyl-4-hydroxybenzyl)phenol; Antioxidant AO-20; Antioxidant 1790; Irganox 1790; Lowinox 1790; Anox 20; 2,4,6-Tris(3,5-di-tert-butyl-4-hydroxybenzyl)phenol; 1,3,5-Trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene (common misnomer)
EINECS	227-881-6

Quality Control

Our production of 2,4,6-Tris-(3,5-Di-tert-Butyl-4-Hydroxybenzyl)Phenol adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure consistency and compliance with industry specifications. Certificates of Analysis (COA) detailing all critical parameters are available upon request to support your quality assurance processes.

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 product 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	220 - 225 °C
Loss on Drying	≤ 0.5 %
Ash Content	≤ 0.1 %
Heavy Metals (as Pb)	≤ 10 ppm

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