Description

Phosphonofluoridic Acid, Ethyl-, Cyclopentyl Ester (9Ci) is a specialized organophosphorus compound with a unique fluorinated phosphonate structure. This chemical matters as a high-value intermediate for synthesizing advanced materials and bioactive molecules, offering precise reactivity for introducing fluorine and phosphonate functional groups. It is needed by researchers and process chemists in the pharmaceutical, agrochemical, and materials science industries for developing novel active ingredients and functional polymers.

Application

• As a key fluorinated building block in pharmaceutical research for prodrug development.
• Intermediate in the synthesis of novel agrochemicals, such as herbicides and insecticides.
• Precursor for flame retardants and specialty polymer additives.
• Reagent in organic synthesis for the introduction of phosphonofluoridate groups.
• Starting material for metal extraction ligands and catalysts.
• Component in the development of chemical probes and enzyme inhibitors for biochemical studies.

Basic Information

Product Name	Phosphonofluoridic Acid, Ethyl-, Cyclopentyl Ester (9Ci)
CAS No.	345239-06-7
Molecular Formula	C7H14FO3P
Molecular Weight	196.16 g/mol
Synonyms	Ethylphosphonofluoridic Acid Cyclopentyl Ester; Cyclopentyl Ethylphosphonofluoridate; Ethyl(fluorophosphinyl)oxycyclopentane; Cyclopentyl O-Ethylphosphonofluoridate; Phosphonofluoridic Acid, Ethyl-, Cyclopentyl Ester; 345239-06-7; Ethyl Cyclopentyl Phosphonofluoridate
EINECS	Contact for details

Quality Control

Our Phosphonofluoridic Acid, Ethyl-, Cyclopentyl Ester (9Ci) is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including chromatography and spectroscopy, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are available upon request to support your quality assurance and regulatory needs.

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). This compound is sensitive to fluoride/strong alkali conditions. Keep away from incompatible materials and sources of ignition.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 95.0%
Water Content (KF)	≤ 0.5%

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