Description

2,2',6,6'-Tetramethyl-4,4'-Biphenol is a high-purity, sterically hindered biphenol derivative. This compound is a critical advanced intermediate valued for its unique molecular structure, which provides exceptional thermal and oxidative stability. It is essential for manufacturers in the polymer, specialty chemical, and pharmaceutical sectors seeking to enhance material performance.

Application

• Polymer Industry: Key monomer for synthesizing high-performance engineering plastics, polycarbonates, and liquid crystalline polymers (LCPs).
• Antioxidant Synthesis: Serves as a core building block for producing hindered phenolic antioxidants used in plastics, rubber, and fuels.
• Pharmaceutical Intermediates: Used in the research and development of novel active pharmaceutical ingredients (APIs) requiring rigid, stable biphenyl structures.
• Ligand for Catalysis: Employed in the preparation of sterically demanding ligands for transition metal catalysts in asymmetric synthesis.
• Epoxy Resin Modifiers: Acts as a chain extender or cross-linking agent to improve the thermal and mechanical properties of epoxy resin systems.
• Specialty Additives: Intermediate for UV stabilizers and other functional additives in advanced material formulations.

Basic Information

Product Name	2,2',6,6'-Tetramethyl-4,4'-Biphenol
CAS No.	2417-04-1
Molecular Formula	C16H18O2
Molecular Weight	242.31 g/mol
Synonyms	4,4'-Biphenol, 2,2',6,6'-tetramethyl-; 2,2',6,6'-Tetramethyl[1,1'-biphenyl]-4,4'-diol; TMBP; Tetramethylbiphenol; 4,4'-Dihydroxy-2,2',6,6'-tetramethylbiphenyl; 2,2',6,6'-Tetramethyl-4,4'-dihydroxybiphenyl; 2,2',6,6'-Tetramethylbiphenyl-4,4'-diol; NSC 403697
EINECS	219-330-7

Quality Control

Our 2,2',6,6'-Tetramethyl-4,4'-Biphenol is produced under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC and GC analysis, to ensure high purity and consistency. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with each shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). This material is easily oxidized (store under inert atmosphere) and is light-sensitive (store away from light). 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	245 - 250 °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.