Description

Diethyl 3-Fluorobenzylphosphonate CAS NO 63909-57-9 is a high-purity organophosphorus compound characterized by its fluorinated benzyl group. This chemical serves as a crucial synthetic intermediate, valued for its role in constructing complex molecules and facilitating key chemical transformations. It is primarily sought after by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors for developing novel active ingredients and functional compounds.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for candidates targeting neurological and oncological pathways.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators, leveraging the fluorine atom for enhanced bioactivity and stability.
• Ligand and Catalyst Precursor: Serves as a starting material for the preparation of specialized phosphonate-based ligands used in transition metal catalysis and cross-coupling reactions.
• Material Science Research: Employed in the development of flame retardants, plasticizers, and other functional additives for polymers and advanced materials.
• Chemical Biology Probes: Utilized in the design and synthesis of molecular probes and enzyme inhibitors for biochemical research and diagnostic applications.
• Custom Synthesis and Contract Manufacturing: A vital reagent for custom synthesis houses and CDMOs (Contract Development and Manufacturing Organizations) serving the life sciences industry.

Basic Information

Item	Details
Product Name	Diethyl 3-Fluorobenzylphosphonate
CAS No.	63909-57-9
Molecular Formula	C11H16FO3P
Molecular Weight	246.21 g/mol
Synonyms	Diethyl (3-Fluorobenzyl)phosphonate; (3-Fluorobenzyl)phosphonic Acid Diethyl Ester; Diethyl (3-Fluorophenylmethyl)phosphonate; 3-Fluorobenzylphosphonic Acid Diethyl Ester; Diethyl P-(3-Fluorobenzyl)phosphonate; (3-Fluorobenzyl)phosphonic Acid Diethyl Ester; Phosphonic Acid, P-[(3-fluorophenyl)methyl]-, Diethyl Ester
EINECS	Contact for details

Quality Control

Every batch of Diethyl 3-Fluorobenzylphosphonate is produced and tested under a strict quality management system. We ensure compliance with relevant industry standards, and comprehensive analytical testing is performed to verify identity, purity, and consistency. A Certificate of Analysis (COA) detailing specific results for each parameter is provided with every shipment to guarantee traceability and meet your quality assurance requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong bases and incompatible materials. The container must be kept tightly sealed to prevent moisture absorption and degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Density (20°C)	~1.15 g/cm³

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