Description

Ethenone, (2,5-Difluoro-2,3,4-Cyclopentatrien-1-Ylidene)- (9Ci) is a specialized fluorinated cyclopentatrienylidene derivative, a high-value synthetic intermediate in advanced organic chemistry. This compound matters for its unique reactivity profile, enabling the construction of complex, fluorine-containing molecular architectures critical for modern material and pharmaceutical science. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and advanced materials sectors for creating novel active ingredients and functional polymers.

Application

• As a key fluorinated building block in pharmaceutical research for the synthesis of novel drug candidates.
• As a precursor in the development of agrochemicals, including herbicides and pesticides with enhanced properties.
• In materials science for the synthesis of specialty polymers and advanced organic electronic materials.
• As a reactive intermediate in academic and industrial R&D for exploring new fluorination methodologies and reaction pathways.
• For the preparation of ligands and catalysts used in asymmetric synthesis and cross-coupling reactions.

Basic Information

Product Name	Ethenone, (2,5-Difluoro-2,3,4-Cyclopentatrien-1-Ylidene)- (9Ci)
CAS No.	619296-20-7
Molecular Formula	C7H2F2O
Molecular Weight	140.09 g/mol
Synonyms	(2,5-Difluoro-2,3,4-cyclopentatrien-1-ylidene)ethenone; 2,5-Difluoro-2,3,4-cyclopentatrien-1-ylidene-ketene; Difluorocyclopentatrienylideneketene; 619296-20-7; (2,5-Difluoro-2,3,4-cyclopentatrien-1-ylidene)methanone
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards. Every batch is characterized using advanced analytical techniques to confirm identity, purity, and consistency. Certificates of Analysis (COA) detailing specific batch results are available upon request to support your quality assurance and regulatory documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area. For long-term stability, storage at 2-8°C under an inert atmosphere is recommended. Keep away from strong oxidizing agents and bases.

Specification

Item	Specification
Appearance	Off-white to light yellow solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
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.