Description

1,2,4,5-Tetramethyl-3,6-Bis(2-Phenylethynyl)Benzene is a highly functionalized organic compound featuring a central benzene core symmetrically substituted with methyl and phenylethynyl groups. This unique molecular architecture, characterized by its extended conjugated system, makes it a valuable advanced intermediate or building block in sophisticated chemical syntheses. It is primarily sought after by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and advanced materials sectors for constructing complex molecular frameworks.

Application

• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of novel active pharmaceutical ingredients (APIs), particularly for candidates requiring rigid, conjugated aromatic systems.
• Agrochemical Research: Used in the development of new herbicides, fungicides, or pesticides where its specific steric and electronic properties can influence biological activity.
• Organic Electronic Materials: Acts as a precursor or core unit in the development of organic semiconductors, light-emitting diodes (OLEDs), or photovoltaic materials due to its conjugated backbone.
• Ligand Synthesis: Utilized for constructing complex organic ligands used in catalysis, such as for transition metal complexes in cross-coupling reactions.
• Polymer Chemistry: Can be incorporated as a monomer or cross-linking agent to create specialty polymers with tailored thermal, optical, or mechanical properties.
• Academic & Industrial R&D: Employed in fundamental research exploring new organic reactions, supramolecular chemistry, or as a model compound in spectroscopic studies.

Basic Information

Product Name	1,2,4,5-Tetramethyl-3,6-Bis(2-Phenylethynyl)Benzene
CAS No.	140477-37-8
Molecular Formula	C30H24
Molecular Weight	384.52 g/mol
Synonyms	1,2,4,5-Tetramethyl-3,6-bis(phenylethynyl)benzene; 3,6-Bis(phenylethynyl)-1,2,4,5-tetramethylbenzene; 1,2,4,5-Tetramethyl-3,6-di(phenylethynyl)benzene; Durene bis(phenylethynyl) derivative; Tetramethylbis(phenylethynyl)benzene
EINECS	Contact for details

Quality Control

Our production of 1,2,4,5-Tetramethyl-3,6-Bis(2-Phenylethynyl)Benzene adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC, GC, NMR, and mass spectrometry, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all critical specifications are provided and available upon request. We support cGMP compliance for advanced applications.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry, and well-ventilated place. Recommended storage temperature is 2-8°C for long-term stability. Allow the sealed container to reach ambient temperature before opening to minimize moisture ingress.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Single Unknown Impurity (HPLC)	≤ 1.0%
Total Impurities (HPLC)	≤ 3.0%

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