Description

(4-Fluoro-Phenyl)-Phosphonic Acid CAS NO 349-87-1 is a high-purity organophosphorus compound featuring a phosphonic acid group attached to a fluorinated benzene ring. This unique structure makes it a valuable building block and key intermediate in advanced chemical synthesis. It is primarily utilized by pharmaceutical, agrochemical, and material science industries for research and manufacturing processes.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel active pharmaceutical ingredients (APIs), particularly those targeting specific enzyme inhibition.
• Agrochemical Synthesis: Used in the development of modern herbicides, fungicides, and plant growth regulators due to its bioisosteric properties.
• Ligand and Catalyst Preparation: Serves as a versatile ligand for metal complexes in catalytic applications, including cross-coupling reactions.
• Material Science & Metal-Organic Frameworks (MOFs): Acts as a functional linker molecule for constructing porous coordination polymers and advanced materials.
• Surface Modification Agent: Used to functionalize metal oxide surfaces (e.g., titanium, aluminum) to alter wettability, adhesion, and corrosion resistance.
• Flame Retardant Additive: Incorporated into polymer systems as a phosphorus-based flame-retardant component.

Basic Information

Item	Details
Product Name	(4-Fluoro-Phenyl)-Phosphonic Acid
CAS No.	349-87-1
Molecular Formula	C6H6FO3P
Molecular Weight	176.08 g/mol
Synonyms	p-Fluorophenylphosphonic Acid; (4-Fluorophenyl)phosphonic Acid; 4-Fluorobenzenephosphonic Acid; Phosphonic acid, P-(4-fluorophenyl)-; 4-Fluorophenylphosphonate; 4-Fluoro-Phenyl-Phosphonsäure (German); Acide (4-fluorophényl)phosphonique (French)
EINECS	206-498-5

Quality Control

Our (4-Fluoro-Phenyl)-Phosphonic Acid is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure high purity and consistent performance. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, impurity profile, and identity confirmation. Our quality commitment ensures the material meets the stringent requirements for research and industrial synthesis.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Water Content (KF)	≤ 1.0%
Heavy Metals	≤ 20 ppm

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