Description

2,3,5,6-Tetramethyl Phenol is a high-purity, multi-methylated phenolic compound with the CAS number 527-35-5. This sterically hindered phenol is valued for its role as a versatile chemical intermediate and a potent antioxidant precursor in advanced material synthesis. It is primarily sought by manufacturers in the polymer, agrochemical, and specialty chemical industries for applications requiring controlled oxidation resistance and specific steric properties.

Application

• Antioxidant Synthesis: A key intermediate in the production of high-performance phenolic antioxidants for plastics, rubber, and lubricants to prevent thermal and oxidative degradation.
• Polymer Stabilizers: Used in the manufacture of stabilizer packages for polyolefins and other polymers to extend product lifespan.
• Agrochemical Intermediates: Serves as a building block for synthesizing certain herbicides, fungicides, and plant growth regulators.
• Pharmaceutical Intermediates: Employed in the synthesis of complex organic molecules for pharmaceutical research and development.
• Dye and Pigment Manufacturing: Acts as a precursor in the synthesis of specific dyes and organic pigments.
• Flavor and Fragrance Compounds: Used in the controlled synthesis of certain aroma chemicals.
• Research & Development: A valuable reagent in organic chemistry research for studying steric effects and oxidation mechanisms.

Basic Information

Product Name	2,3,5,6-Tetramethyl Phenol
CAS No.	527-35-5
Molecular Formula	C10H14O
Molecular Weight	150.22 g/mol
Synonyms	2,3,5,6-Tetramethylphenol; Durenol; 1-Hydroxy-2,3,5,6-tetramethylbenzene; Phenol, 2,3,5,6-tetramethyl-; Tetramethylhydroxybenzene; 2,3,5,6-Tetramethyl-1-hydroxybenzene; NSC 403697
EINECS	208-416-3

Quality Control

Our 2,3,5,6-Tetramethyl Phenol is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistent performance. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is easily oxidized; for long-term storage, consider maintaining under an inert atmosphere (e.g., nitrogen) to preserve quality. 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	110 - 114 °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.