Description

Quinoxaline, 2,3-Diethynyl- is a specialized heterocyclic organic compound featuring a quinoxaline core functionalized with ethynyl groups at the 2 and 3 positions. This unique structure makes it a valuable high-purity building block for advanced materials and pharmaceutical research. It is primarily sought after by R&D and production teams in the organic electronics, polymer science, and medicinal chemistry sectors for synthesizing novel functional molecules.

Application

• Organic Semiconductor Precursor: A key monomer for synthesizing conjugated polymers and small molecules used in OLEDs, OFETs, and organic photovoltaics.
• Pharmaceutical Intermediate: Serves as a crucial scaffold in medicinal chemistry for developing new drug candidates, particularly kinase inhibitors.
• Coordination Chemistry & Ligand Synthesis: Used to create novel chelating ligands for catalysis and metal-organic frameworks (MOFs).
• Advanced Polymer Synthesis: Employed in the production of high-performance, thermally stable polymers via Sonogashira and other cross-coupling reactions.
• Material Science Research: Fundamental building block for developing new functional materials with tailored electronic and optical properties.
• Fluorescent Probe Development: Utilized in the design of sensitive chemosensors and bio-imaging agents due to its modifiable photophysical characteristics.

Basic Information

Product Name	Quinoxaline, 2,3-Diethynyl-
CAS No.	98813-72-0
Molecular Formula	C12H6N2
Molecular Weight	178.19 g/mol
Synonyms	2,3-Diethynylquinoxaline; 2,3-Bis(ethynyl)quinoxaline; Quinoxaline-2,3-diyldiethyne; 2,3-Diethynyl-1,4-diazanaphthalene; 2,3-Diethynylbenzo[g]quinoxaline (incorrect but common misnomer); DEQ; 2,3-Diethynyl-pyrazine (fused benzene ring analog)
EINECS	Contact for details

Quality Control

Every batch of Quinoxaline, 2,3-Diethynyl- is produced and analyzed under strict quality management protocols. We guarantee high purity and batch-to-batch consistency through comprehensive analytical techniques including HPLC, GC-MS, and NMR. A detailed Certificate of Analysis (COA) documenting identity, purity, and impurity profiles is provided with each shipment to ensure it meets your specific research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This compound is light-sensitive and should be handled under an inert atmosphere for long-term storage to prevent potential oxidation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Yellow to light brown crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0% (Standard Grade)
Purity (HPLC)	≥ 99.0% (High Purity Grade)
Melting Point	Contact for details
Residue on Ignition	< 0.5%
Heavy Metals (as Pb)	< 20 ppm

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