Description

2-(1,1-Dimethylethyl)-4-Methyl-6-(1,1,3,3-Tetramethylbutyl)Phenol is a sterically hindered phenolic compound valued for its excellent antioxidant and stabilizing properties. It is a critical additive for preventing oxidative degradation and extending the service life of various industrial materials. This high-performance antioxidant is essential for manufacturers in the polymer, fuel, lubricant, and specialty chemical industries seeking to enhance product stability and performance.

Application

• Polymer Stabilizer: A primary antioxidant for polyolefins (e.g., polyethylene, polypropylene), synthetic rubbers, and other polymers to prevent thermal and oxidative degradation during processing and end-use.
• Fuel & Lubricant Additive: Used in gasoline, diesel, and industrial lubricants to inhibit gum formation, sludge, and viscosity increase caused by oxidation.
• Adhesive & Sealant Formulation: Enhances the shelf-life and thermal stability of hot-melt adhesives, pressure-sensitive adhesives, and elastomeric sealants.
• Transformer Oil Antioxidant: Contributes to the oxidative stability of insulating oils in electrical transformers, helping to maintain dielectric properties.
• Synthetic Fiber Processing: Protects polyamide and polyester fibers from thermal degradation during high-temperature spinning and drawing processes.
• Industrial Grease Stabilization: Prevents oxidation in lithium-based and other complex greases, extending their operational life in bearings and machinery.

Basic Information

Product Name	2-(1,1-Dimethylethyl)-4-Methyl-6-(1,1,3,3-Tetramethylbutyl)Phenol
CAS No.	34729-62-9
Molecular Formula	C19H32O
Molecular Weight	276.46 g/mol
Synonyms	2-tert-Butyl-4-methyl-6-(1,1,3,3-tetramethylbutyl)phenol; 6-(1,1,3,3-Tetramethylbutyl)-2-tert-butyl-4-methylphenol; Antioxidant 703; AO 703; Phenol, 2-(1,1-dimethylethyl)-4-methyl-6-(1,1,3,3-tetramethylbutyl)-; 2-tert-Butyl-4-methyl-6-(2,4,4-trimethylpentan-2-yl)phenol; Irganox L 135; Lowinox 44B25
EINECS	252-161-1

Quality Control

Our production of 2-(1,1-Dimethylethyl)-4-Methyl-6-(1,1,3,3-Tetramethylbutyl)Phenol adheres to a stringent quality management system to ensure batch-to-batch consistency and high purity. Certificates of Analysis (COA) detailing key parameters such as assay, color, and melting point are provided with each shipment. We support compliance with relevant global standards for industrial chemical manufacturing.

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 heat, sparks, and open flames. For long-term storage, consider an inert atmosphere to maintain optimal efficacy.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or flakes
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0 %
Melting Point	48 - 52 °C
Color (APHA)	≤ 50
Loss on Drying	≤ 0.5 %

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