Description

5-Ethylidenefuran-2(5H)-One is a versatile heterocyclic building block and a key intermediate in organic synthesis. Its unique α,β-unsaturated lactone structure makes it a valuable precursor for creating complex molecules with specific functionalities. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and fine chemical industries seeking to develop new active ingredients and advanced materials.

Application

• Pharmaceutical Intermediate: A crucial building block for synthesizing novel drug candidates, particularly those with heterocyclic cores.
• Agrochemical Synthesis: Used in the production of advanced pesticides, herbicides, and fungicides.
• Fine Chemical Production: Serves as a key starting material for flavors, fragrances, and specialty polymers.
• Material Science Research: Employed in the development of new organic electronic materials and functional polymers.
• Academic & R&D: A valuable reagent for methodological studies in organic chemistry and catalysis.
• Dye and Pigment Intermediate: Used in the synthesis of specialized colorants.

Basic Information

Product Name	5-Ethylidenefuran-2(5H)-One
CAS No.	3690-50-4
Molecular Formula	C6H6O2
Molecular Weight	110.11 g/mol
Synonyms	5-Ethylidene-2(5H)-furanone; 5-Ethylidenefuran-2-one; 2(5H)-Furanone, 5-ethylidene-; 5-Ethylidene-5H-furan-2-one; 5-Ethylidenedihydro-2(3H)-furanone; 5-Ethylidene-2-furanone; 5-Ethylidene-2-oxo-2,5-dihydrofuran
EINECS	223-010-8

Quality Control

Our 5-Ethylidenefuran-2(5H)-One is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistency. We provide full traceability and Certificates of Analysis (COA) are available for all shipments to support your quality assurance and regulatory compliance needs.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid / solid
Identification (IR)	Conforms
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 1.0%

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