Description

Pyridine, 4,4'-(2,3,5,6-Tetramethyl-1,4-Phenylene)Bis- is a specialized bipyridine derivative characterized by its rigid, tetramethyl-substituted phenylene bridge. This compound matters as a high-value ligand precursor and building block for advanced materials, offering precise steric and electronic properties for catalysis and molecular assembly. It is needed by researchers and manufacturers in the pharmaceutical, agrochemical, and materials science sectors for developing novel catalysts, organic electronic components, and supramolecular structures.

Application

• Ligand Synthesis for Homogeneous Catalysis: Serves as a key precursor for constructing bidentate and polydentate ligands used in cross-coupling, hydrogenation, and polymerization reactions.
• Pharmaceutical Intermediate: Employed in the research and development of complex active pharmaceutical ingredients (APIs), particularly those requiring rigid, conjugated architectures.
• Agrochemical Active Ingredient Development: Used in creating novel fungicides or herbicides where the specific bipyridine structure can enhance biological activity and selectivity.
• Organic Electronic Materials: Acts as a building block for electron-transport materials, non-fullerene acceptors, or emissive layers in OLEDs and OPVs due to its conjugated system.
• Metal-Organic Framework (MOF) Construction: Functions as a bridging ligand to create porous coordination polymers with tailored pore geometries for gas storage or separation.
• Supramolecular Chemistry & Sensor Development: Utilized in the design of molecular receptors, cages, and chemosensors that rely on its defined geometry and coordination sites.
• Corrosion Inhibition Formulations: Potential application as a component in high-performance corrosion inhibitors for metals, leveraging the chelating ability of the pyridine groups.
• Academic & Industrial R&D: A valuable tool for synthetic chemists exploring new reaction pathways and material properties in both university and corporate research laboratories.

Basic Information

Item	Details
Product Name	Pyridine, 4,4'-(2,3,5,6-Tetramethyl-1,4-Phenylene)Bis-
CAS No.	1124218-83-2
Molecular Formula	C22H22N2
Molecular Weight	314.43 g/mol
Synonyms	4,4'-(2,3,5,6-Tetramethyl-1,4-phenylene)dipyridine; 2,3,5,6-Tetramethyl-1,4-bis(4-pyridyl)benzene; 1,4-Bis(4-pyridyl)-2,3,5,6-tetramethylbenzene; Durene-1,4-diylbis(4-pyridine); Tetramethyl-p-phenylenebis(4-pyridine); 4,4'-(2,3,5,6-Tetramethyl-p-phenylene)dipyridine; 4,4'-(Durene-1,4-diyl)dipyridine
EINECS	Contact for details

Quality Control

Our Pyridine, 4,4'-(2,3,5,6-Tetramethyl-1,4-Phenylene)Bis- is produced under strict quality management protocols. Every batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, impurity profile, and physical characteristics. Our quality systems are designed to support cGMP and ISO standards for research and development applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0%
Single Maximum Unknown Impurity	≤ 0.5%

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