Description

5-Methylenefuran-2(5H)-One is a versatile heterocyclic lactone and a key reactive intermediate in organic synthesis. Its unique structure, featuring an exocyclic methylene group, makes it a valuable building block for creating more complex molecules. This compound is essential for research and development chemists in the pharmaceutical, agrochemical, and specialty chemical industries seeking to introduce functionalized furanone moieties into their target compounds.

Application

• Pharmaceutical Intermediate: Serves as a crucial precursor in the synthesis of active pharmaceutical ingredients (APIs) and novel drug candidates.
• Agrochemical Synthesis: Used in the development of advanced pesticides, herbicides, and plant growth regulators.
• Fine Chemical Production: Acts as a key monomer or intermediate for producing specialty polymers, flavors, and fragrances.
• Material Science Research: Employed in the development of novel polymers and functional materials with specific optical or electronic properties.
• Academic & Industrial R&D: A fundamental reagent for methodological studies in organic chemistry, including Diels-Alder and Michael addition reactions.

Basic Information

Product Name	5-Methylenefuran-2(5H)-One
CAS No.	108-28-1
Molecular Formula	C5H4O2
Molecular Weight	96.08 g/mol
Synonyms	5-Methylene-2(5H)-furanone; 5-Methylenefuran-2-one; 5-Methylene-2-furanone; 2(5H)-Furanone, 5-methylene-; 5-Methylenebut-2-en-4-olide; 5-Methylenedihydrofuran-2(3H)-one; 5-Methylenedihydro-2(3H)-furanone
EINECS	203-566-7

Quality Control

Our 5-Methylenefuran-2(5H)-One is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chromatography and spectroscopy, to ensure high purity and consistency. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming compliance with agreed specifications. We support cGMP and ISO standards for research and industrial-grade materials.

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). Keep away from strong oxidizing agents, strong bases, and sources of ignition. For long-term storage, consider an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 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.