Description

Phenylphosphonic Dichloride is a key organophosphorus reagent and versatile chemical intermediate. Its high reactivity, particularly as a phosphorylating agent, makes it essential for constructing complex molecules in advanced chemical synthesis. This compound is primarily utilized by manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries for producing active ingredients, flame retardants, and ligands.

Application

• Pharmaceutical Intermediate: Critical for synthesizing novel active pharmaceutical ingredients (APIs), including bisphosphonates for osteoporosis treatment and antiviral agents.
• Agrochemical Synthesis: Serves as a key building block for creating advanced herbicides, insecticides, and plant growth regulators.
• Flame Retardant Precursor: Used in the production of organophosphorus flame retardants for engineering plastics and textiles.
• Ligand and Catalyst Preparation: Employed in the synthesis of phosphonate and phosphinic acid ligands for metal catalysis and extraction processes.
• Polymer Modification: Acts as a monomer or cross-linking agent for specialty polymers, including polyphosphonates with enhanced thermal stability.
• Surface Treatment Agent: Utilized to modify material surfaces to improve adhesion, corrosion resistance, or biocompatibility.

Basic Information

Product Name	Phenylphosphonic Dichloride
CAS No.	824-72-6
Molecular Formula	C6H5Cl2OP
Molecular Weight	194.98 g/mol
Synonyms	Phenylphosphonyl Dichloride; Benzenephosphonic Dichloride; Dichlorophenylphosphine Oxide; Phenylphosphonic Acid Dichloride; Phenylphosphonoyl Dichloride; NSC 408189; Phenylphosphonic Chloride
EINECS	212-536-0

Quality Control

Our Phenylphosphonic Dichloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including GC and NMR, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Due to its hygroscopic and moisture-sensitive nature, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent hydrolysis. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Water Content (Karl Fischer)	≤ 0.5%

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