Description

5-Ethynylfuran-2-Carbaldehyde is a high-value, multi-functional heterocyclic building block characterized by its reactive aldehyde and ethynyl groups. This compound matters for its versatility in advanced organic synthesis, enabling the construction of complex molecular architectures through click chemistry, Sonogashira coupling, and other cross-coupling reactions. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and material science industries for creating novel active ingredients and functional polymers.

Application

• Pharmaceutical Intermediate: A key synthon for the development of novel drug candidates, particularly in oncology and antiviral research.
• Agrochemical Synthesis: Used in the creation of new generation herbicides, fungicides, and plant growth regulators.
• Material Science & Polymer Chemistry: Serves as a monomer or cross-linking agent for synthesizing specialty polymers, conductive materials, and metal-organic frameworks (MOFs).
• Click Chemistry Reagent: The ethynyl group is ideal for Huisgen 1,3-dipolar cycloaddition (copper-catalyzed azide-alkyne cycloaddition) to create triazole linkages.
• Ligand & Catalyst Development: Used to prepare novel ligands for transition metal catalysis and organometallic complexes.
• Fluorescent Probe & Sensor Development: The furan-aldehyde scaffold can be incorporated into molecules designed for sensing and imaging applications.

Basic Information

Item	Details
Product Name	5-Ethynylfuran-2-Carbaldehyde
CAS No.	153026-71-2
Molecular Formula	C7H4O2
Molecular Weight	120.11 g/mol
Synonyms	5-Ethynyl-2-furaldehyde; 5-Ethynyl-2-furancarboxaldehyde; 2-Formyl-5-ethynylfuran; 5-Ethynylfurfural; 2-Furancarboxaldehyde, 5-ethynyl-; Furan-2-carbaldehyde, 5-ethynyl-
EINECS	Contact for details

Quality Control

Our 5-Ethynylfuran-2-Carbaldehyde is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, NMR, and FTIR, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all critical quality attributes. Our commitment to cGMP and ISO 9001 standards ensures reliable supply for your most demanding research and development projects.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at controlled room temperature (15-25°C) in a cool, dry, and well-ventilated place. Due to its sensitivity to light and oxidation, prolonged exposure to air and light should be avoided.

Specification

Item	Specification
Appearance	Yellow to brown crystalline powder or solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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