Description

5H-Cyclopenta[B]Furan-5-One, 4-Ethylidenehexahydro-, (4Z)- (9Ci) CAS NO 657390-29-9 is a specialized heterocyclic compound featuring a fused cyclopentane and furanone structure, serving as a valuable synthetic intermediate. Its unique molecular architecture makes it a critical building block for the development of complex organic molecules, particularly in advanced pharmaceutical and agrochemical research. This high-purity compound is essential for R&D chemists and process development scientists in fine chemical synthesis, where precise structural control is paramount.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the synthesis of active pharmaceutical ingredients (APIs), especially those with complex polycyclic frameworks.
• Agrochemical Research: Used in the development of novel herbicides, fungicides, and insecticides, leveraging its fused ring system for bioactivity.
• Flavor & Fragrance Chemistry: Serves as a precursor for creating unique lactone and furanone-based aroma compounds.
• Material Science: Investigated as a monomer or precursor for specialty polymers and advanced organic electronic materials.
• Academic & Industrial R&D: A versatile scaffold in medicinal chemistry for library synthesis and structure-activity relationship (SAR) studies.
• Catalyst Ligand Synthesis: Potential building block for constructing novel chiral ligands used in asymmetric catalysis.

Basic Information

Product Name	5H-Cyclopenta[B]Furan-5-One, 4-Ethylidenehexahydro-, (4Z)- (9Ci)
CAS No.	657390-29-9
Molecular Formula	C9H12O2
Molecular Weight	152.19 g/mol
Synonyms	(4Z)-4-Ethylidenehexahydro-5H-cyclopenta[b]furan-5-one; 4-Ethylidenehexahydro-5H-cyclopenta[b]furan-5-one, (4Z)-; Hexahydro-4-ethylidene-5H-cyclopenta[b]furan-5-one; 5H-Cyclopenta[b]furan-5-one, 4-ethylidenehexahydro-, (Z)-; 657390-29-9; (Z)-4-Ethylidenehexahydro-5H-cyclopenta[b]furan-5-one
EINECS	Contact for details

Quality Control

Our 5H-Cyclopenta[B]Furan-5-One, 4-Ethylidenehexahydro-, (4Z)- (9Ci) is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all specified parameters. Our quality commitment aligns with cGMP principles for pharmaceutical intermediates, ensuring reliability for your critical synthesis workflows.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from heat, sparks, and open flame. 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)	≥ 97.0%
Purity (GC)	≥ 96.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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