Description

Phosphonous Acid, (4-Fluorophenyl)- (9Ci) is a specialized organophosphorus compound characterized by a phenyl ring substituted with a fluorine atom and a phosphonous acid functional group. This unique structure makes it a valuable building block and ligand precursor in advanced chemical synthesis. It is primarily utilized by researchers and manufacturers in the pharmaceutical and agrochemical industries for developing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the research and development of new drug candidates, particularly those targeting specific enzyme pathways.
• Agrochemical Synthesis: Used in the creation of novel herbicides, fungicides, and plant growth regulators, leveraging the bioactivity of the phosphorus-fluorine motif.
• Ligand for Catalysis: Acts as a precursor for phosphonite ligands, which are employed in transition metal-catalyzed reactions such as cross-coupling and hydrogenation.
• Material Science Research: Investigated for incorporation into flame retardants, polymer modifiers, and other specialty materials due to its phosphorus content.
• Chemical Synthesis Building Block: Provides a versatile handle for introducing the (4-fluorophenyl)phosphonous moiety into more complex molecular architectures.

Basic Information

Product Name	Phosphonous Acid, (4-Fluorophenyl)- (9Ci)
CAS No.	344352-98-3
Molecular Formula	C6H6FO2P
Molecular Weight	160.08 g/mol
Synonyms	(4-Fluorophenyl)phosphonous Acid; 4-Fluorophenylphosphonous Acid; p-Fluorophenylphosphonous Acid; (p-Fluorophenyl)phosphinic Acid (tautomer); Phosphinic Acid, P-(4-fluorophenyl)-; 344352-98-3; (4-Fluorophenyl)-H-phosphinic Acid
EINECS	Contact for details

Quality Control

Every batch of Phosphonous Acid, (4-Fluorophenyl)- (9Ci) is produced and analyzed under strict quality management protocols. We ensure high purity and batch-to-batch consistency through advanced analytical techniques. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to support your R&D and quality assurance requirements.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at a controlled room temperature (15-25°C) in a cool, dry, and well-ventilated area. Due to its sensitivity to oxidation, the container should be kept sealed under positive pressure of inert gas when not in use.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Purity (NMR)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%

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