Description

4-Methyl-2(5H)-Furanone is a versatile lactone compound with a distinct, sweet, and coumarin-like aroma. This heterocyclic building block is valued for its role as a key intermediate in the synthesis of complex molecules across several high-value industries. It is essential for manufacturers and R&D teams in the flavor & fragrance, pharmaceutical, and agrochemical sectors seeking reliable, high-purity raw materials for their processes.

Application

• Flavor and Fragrance (F&F) Industry: Serves as a crucial intermediate for creating lactone-based aroma chemicals, imparting sweet, creamy, and coconut-like notes to perfumes and food flavorings.
• Pharmaceutical Synthesis: Acts as a key chiral building block and precursor in the production of active pharmaceutical ingredients (APIs) and other bioactive compounds.
• Agrochemical Intermediates: Used in the synthesis of advanced pesticides and herbicides, leveraging its reactive lactone functionality.
• Organic Synthesis & Research: Employed as a versatile reagent for Diels-Alder reactions and other cycloadditions to construct complex heterocyclic frameworks in academic and industrial R&D.
• Specialty Chemicals: Functions as a monomer or modifier in the production of specialty polymers and fine chemicals.

Basic Information

Product Name	4-Methyl-2(5H)-Furanone
CAS No.	6124-79-4
Molecular Formula	C5H6O2
Molecular Weight	98.10 g/mol
Synonyms	4-Methyl-2(5H)-furanone; 4-Methyl-5H-furan-2-one; 4-Methylbut-2-en-4-olide; 4-Methyl-2-oxo-2,5-dihydrofuran; γ-Crotonolactone; NSC 406913
EINECS	228-077-7

Quality Control

Our 4-Methyl-2(5H)-Furanone is produced under a strict quality management system. Each batch undergoes rigorous analytical testing, including chromatography (HPLC/GC) and spectroscopic methods, to ensure high purity and consistent performance. A comprehensive Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep away from strong bases and incompatible organic solvents. For long-term storage under an inert atmosphere, please contact us for specific recommendations.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Refractive Index (20°C)	1.470 - 1.480
Specific Gravity (20°C)	1.090 - 1.110

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