Description

Pyridine, 4,4'-[(2,3,5,6-Tetramethyl-1,4-Phenylene)Di-2,1-Ethynediyl]Bis- is a specialized, high-purity organic compound featuring a rigid, conjugated structure derived from pyridine and tetramethylphenylene units. This compound matters as a critical building block or intermediate in advanced materials science and pharmaceutical research, where its unique electronic and steric properties are essential. It is primarily needed by R&D chemists and process engineers in the organic electronics, agrochemical, and pharmaceutical sectors for developing novel functional molecules.

Application

• Organic Semiconductor Precursor: Serves as a key ligand or core structure in the synthesis of materials for OLEDs, OFETs, and other electronic devices.
• Pharmaceutical Intermediate: Used in the research and development of new active pharmaceutical ingredients (APIs), particularly those requiring rigid, conjugated scaffolds.
• Agrochemical Synthesis: Acts as an intermediate for creating advanced crop protection agents with specific activity profiles.
• Ligand in Catalysis: Employed in the design of novel metal-organic catalysts for asymmetric synthesis and cross-coupling reactions.
• Material Science Research: Utilized in the development of metal-organic frameworks (MOFs), covalent organic frameworks (COFs), and other porous materials.
• Fluorescent Probe Synthesis: Functions as a core component for creating dyes and sensors with tailored photophysical properties.

Basic Information

Product Name	Pyridine, 4,4'-[(2,3,5,6-Tetramethyl-1,4-Phenylene)Di-2,1-Ethynediyl]Bis-
CAS No.	918801-05-5
Molecular Formula	C26H20N2
Molecular Weight	360.46 g/mol
Synonyms	1,4-Bis(4-pyridylethynyl)-2,3,5,6-tetramethylbenzene; 2,3,5,6-Tetramethyl-1,4-bis(4-pyridin-4-ylethynyl)benzene; 4,4'-(2,3,5,6-Tetramethyl-1,4-phenylene)bis(ethyne-2,1-diyl)dipyridine; TMPE-Py; Tetramethylphenylene-bis(pyridylethyne); TM-PEBP; Contact for details on additional trade names.
EINECS	Contact for details

Quality Control

Our Pyridine, 4,4'-[(2,3,5,6-Tetramethyl-1,4-Phenylene)Di-2,1-Ethynediyl]Bis- is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and GC-MS, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided and can be tailored to meet specific customer or regulatory requirements.

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) in a cool, dry, well-ventilated area. This material is light-sensitive and easily oxidized; prolonged exposure to air or light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Heavy Metals	< 10 ppm
Residual Solvents (GC)	Complies with ICH guidelines

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