Description

2,5-Bis(1,1-Dimethylbutyl)Hydroquinone Monomethyl Ether is a sterically hindered phenolic compound that functions as a highly effective antioxidant and polymerization inhibitor. Its primary value lies in its ability to prevent premature degradation and stabilize sensitive materials against oxidative and thermal stress. This makes it a critical additive for manufacturers in the polymer, rubber, and specialty chemical industries who require reliable process control and extended product shelf life.

Application

• Primary use as a polymerization inhibitor in the production and storage of monomers like styrene, acrylates, and vinyl acetate.
• Key antioxidant (AO) and stabilizer in plastics, synthetic rubbers, and elastomers to prevent thermal-oxidative degradation.
• Additive in lubricants and fuels to enhance oxidative stability and performance longevity.
• Stabilizing agent in adhesives, coatings, and resins to maintain viscosity and prevent gelation.
• Intermediate in the synthesis of other specialty antioxidants and performance chemicals.
• Used in research and development for studying radical scavenging mechanisms and developing new stabilization systems.

Basic Information

Product Name	2,5-Bis(1,1-Dimethylbutyl)Hydroquinone Monomethyl Ether
CAS No.	109870-95-3
Molecular Formula	C₁₈H₃₀O₂
Molecular Weight	278.43 g/mol
Synonyms	2,5-Bis(1,1-dimethylbutyl)hydroquinone 1-methyl ether; 2,5-Di-tert-pentylhydroquinone monomethyl ether; 1-Methoxy-2,5-bis(1,1-dimethylbutyl)benzene-4-ol; HQMME; Antioxidant 245; Inhibitor 245; Phenolic antioxidant 245; 2,5-Di-tert-amylhydroquinone methyl ether
EINECS	Contact for details

Quality Control

Our production of 2,5-Bis(1,1-Dimethylbutyl)Hydroquinone Monomethyl Ether adheres to a strict quality management system. Every batch undergoes comprehensive analytical testing, including assay, purity profiling, and identification, to ensure it meets precise specifications and is free from unintended contaminants. A Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee traceability and compliance with your quality requirements.

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, sparks, and open flame. 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	95 - 105 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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