Description

2(3H)-Furanone, 4-Ethyldihydro-, (4R)- is a specific stereoisomer of a substituted butyrolactone, a class of compounds valued for their utility as chiral building blocks and flavor/fragrance intermediates. This high-purity, single-enantiomer compound is critical for applications requiring precise stereochemistry and consistent performance. It is primarily sought by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors for synthesis and product development.

Application

• Pharmaceutical Intermediate: Serves as a key chiral synthon in the synthesis of active pharmaceutical ingredients (APIs), particularly for drugs targeting the central nervous system or with complex stereochemical requirements.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides and herbicides where the specific (4R) configuration may influence biological activity.
• Flavor & Fragrance Ingredient: Acts as a precursor for creating lactone-based flavor compounds (e.g., coconut, peach, dairy notes) and aroma chemicals in perfumery.
• Organic Synthesis Building Block: Employed in asymmetric synthesis and medicinal chemistry research for constructing complex molecular architectures.
• Liquid Crystal & Electronic Materials: Investigated as a potential intermediate for specialty polymers and advanced materials used in electronics.

Basic Information

Product Name	2(3H)-Furanone, 4-Ethyldihydro-, (4R)-
CAS No.	774198-33-3
Molecular Formula	C6H10O2
Molecular Weight	114.14 g/mol
Synonyms	(R)-4-Ethyl-dihydrofuran-2(3H)-one; (4R)-4-Ethyldihydro-2(3H)-furanone; (R)-4-Ethyl-γ-butyrolactone; (R)-4-Ethylbutyrolactone; (R)-4-Ethyloxolan-2-one; 4-Ethyl-dihydrofuran-2(3H)-one, (4R)-; (R)-4-Ethyl-γ-lactone
EINECS	Contact for details

Quality Control

Our 2(3H)-Furanone, 4-Ethyldihydro-, (4R)- is produced under strict quality management systems. Each batch is subjected to rigorous analytical testing, including chiral purity analysis (HPLC/GC), to ensure it meets the high standards required for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing identity, purity (assay), enantiomeric excess, and impurity profiles is provided with every shipment.

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 oxidizing agents, strong bases, and heat sources. For long-term storage, consider an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 97.0%
Enantiomeric Excess (Chiral HPLC)	≥ 98.0% ee
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.