Description

Phenylphosphonic Acid Methyl Ester is an organophosphorus compound that serves as a versatile chemical intermediate. Its structure makes it valuable for introducing the phenylphosphonate moiety into more complex molecules, enabling the synthesis of specialized materials and active ingredients. This product is primarily utilized by R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty polymer industries for applications requiring precise phosphorus-based functionality.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel active pharmaceutical ingredients (APIs), particularly those with phosphonate or phosphonic acid ester functionalities.
• Agrochemical Synthesis: Used in the production of herbicides, plant growth regulators, and other crop protection agents where the phenylphosphonate group is integral to the molecule's activity.
• Ligand and Catalyst Precursor: Serves as a starting material for creating specialized phosphonate ligands used in homogeneous catalysis and metal complexation.
• Flame Retardant Synthon: Incorporated into the backbone of polymers and resins to enhance flame-retardant properties.
• Material Science Research: Employed in the development of advanced materials, including metal-organic frameworks (MOFs) and surface modification agents.
• Organic Synthesis Reagent: Acts as a phosphorylating agent or a protected phosphonic acid derivative in multi-step synthetic routes.

Basic Information

Product Name	Phenylphosphonic Acid Methyl Ester
CAS No.	10088-45-6
Molecular Formula	C7H9O3P
Molecular Weight	172.12 g/mol
Synonyms	Methyl Phenylphosphonate; Methyl Phenylphosphonite; Phenylphosphonic Acid Monomethyl Ester; Methyl Phenylphosphonic Acid Ester; Phenylphosphonomethyl Ester; Phosphonic Acid, Phenyl-, Methyl Ester; NSC 404097
EINECS	233-217-2

Quality Control

Every batch of our Phenylphosphonic Acid Methyl Ester is produced and tested under a strict quality management system. We ensure compliance with relevant industry standards and provide comprehensive analytical documentation. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is supplied with each shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases. Recommended storage temperature is between 15°C and 25°C. The product is compatible with common organic solvents but should be kept in its original container to maintain purity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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