Description

4,4',4''-(1-Methyl-1,3,3-Propanetriyl)Tris[2-(tert-Butyl)Phenol] is a high-performance sterically hindered phenolic compound, valued for its role as an effective antioxidant and polymerization inhibitor. This chemical is critical for enhancing the thermal and oxidative stability of various polymeric materials and organic substrates. It is primarily sought by manufacturers in the polymer, specialty chemical, and lubricant industries for advanced formulation needs.

Application

• Polymer Stabilizer: Acts as a primary antioxidant in polyolefins (e.g., polyethylene, polypropylene), engineering plastics, and synthetic rubbers to prevent thermal degradation during processing and extend service life.
• Lubricant & Fuel Additive: Used in formulating high-performance lubricating oils, greases, and industrial fuels to inhibit oxidation and sludge formation, ensuring equipment longevity.
• Inhibitor for Monomers: Employed to prevent premature polymerization of styrene, acrylics, and other vinyl monomers during storage and transportation.
• Adhesive & Sealant Formulations: Enhances the durability and resistance to heat aging in high-performance adhesives, sealants, and coatings.
• Synthetic Intermediate: Serves as a key building block in the synthesis of more complex hindered phenol antioxidants and other specialty chemicals.
• Elastomer Protection: Provides antioxidant protection in synthetic elastomers like SBR and NBR, maintaining their physical properties.

Basic Information

Product Name	4,4',4''-(1-Methyl-1,3,3-Propanetriyl)Tris[2-(tert-Butyl)Phenol]
CAS No.	25211-93-2
Molecular Formula	C₄₃H₆₀O₃
Molecular Weight	625.0 g/mol
Synonyms	1,1,3-Tris(2-tert-butyl-4-hydroxy-5-methylphenyl)butane; Tris(2-tert-butyl-4-hydroxy-5-methylphenyl)butane; 2,2'-Butylidenebis(6-tert-butyl-4-methylphenol) dimer; Antioxidant 1790; Irganox 1790; Lowinox 1790; Anox 20; Ethanox 376
EINECS	246-711-1

Quality Control

Our production of 4,4',4''-(1-Methyl-1,3,3-Propanetriyl)Tris[2-(tert-Butyl)Phenol] adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications and industry benchmarks. Certificates of Analysis (COA) documenting all key parameters are provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong alkalis and incompatible organic solvents. For long-term storage, consider an inert atmosphere to maintain optimal efficacy.

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%
Ash Content	≤ 0.1%

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