Description

[1,1-Biphenyl]-4,4-Diol,3,3,5,5-Tetramethyl-,Radicalion(1-)(9Ci) is a specialized biphenyl derivative radical anion, a high-purity intermediate of significant interest in advanced material synthesis. Its unique radical character and sterically hindered phenolic structure make it a valuable building block for creating novel polymers and functional materials. This compound is primarily utilized by R&D chemists and process engineers in the fine chemical, polymer science, and electronics material sectors.

Application

• Polymer Chemistry: As a functional monomer or initiator for the synthesis of advanced polymers with specific redox or electronic properties.
• Material Science: In the development of organic semiconductors, conductive polymers, and other electronic materials where stable radical intermediates are required.
• Fine Chemical Synthesis: Serving as a key intermediate or ligand precursor in the synthesis of complex organic molecules and catalysts.
• Research & Development: For academic and industrial research into radical chemistry, stabilization mechanisms, and new reaction pathways.
• Stabilizer Precursor: Potential use in the development of novel antioxidant or light-stabilizing agents for high-performance plastics and coatings.

Basic Information

Product Name	[1,1-Biphenyl]-4,4-Diol,3,3,5,5-Tetramethyl-,Radicalion(1-)(9Ci)
CAS No.	60133-38-2
Molecular Formula	C16H17O2•-
Molecular Weight	241.31 g/mol (radical anion)
Synonyms	4,4'-Dihydroxy-3,3',5,5'-tetramethylbiphenyl Radical Anion; Tetramethylbiphenol Radical Anion; TMBP Radical Anion; 3,3',5,5'-Tetramethyl-4,4'-biphenyldiol Radical Anion; 4,4'-(3,3',5,5'-Tetramethylbiphenyl-4,4'-diyl)bis(oxidanidyl); Biphenyl-4,4'-diol, 3,3',5,5'-tetramethyl-, radical ion(1-)
EINECS	Contact for details

Quality Control

Our production of [1,1-Biphenyl]-4,4-Diol,3,3,5,5-Tetramethyl-,Radicalion(1-)(9Ci) adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity for research and industrial applications. All materials are characterized using advanced analytical techniques including NMR, HPLC, and ESR spectroscopy to confirm identity, purity, and radical integrity. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at a controlled room temperature (15-25°C) to minimize oxidation and degradation. The container should be kept in a cool, dry, and well-ventilated area away from incompatible materials.

Specification

Item	Specification
Appearance	Solid (Color to be specified per batch)
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95% (Typical 97-99%)
Radical Content (ESR)	Confirmed
Residual Solvents (GC)	Meets ICH guidelines

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