Description

Ethyl-Phenyl-Phosphinic Acid Methyl Ester is an organophosphorus compound that serves as a versatile intermediate in advanced chemical synthesis. This product is valued for its role in constructing complex molecular architectures, particularly in the development of specialized materials and active pharmaceutical ingredients. It is primarily needed by R&D laboratories and production facilities in the pharmaceutical, agrochemical, and specialty polymer industries seeking high-purity synthetic building blocks.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel active pharmaceutical ingredients (APIs), especially those with phosphinate or phosphonate backbones.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators where the phosphinic ester moiety is required.
• Ligand and Catalyst Precursor: Serves as a precursor for chiral or achiral phosphine-based ligands used in asymmetric catalysis and transition metal complexes.
• Flame Retardant Additive: Incorporated as a reactive intermediate in the manufacture of flame-retardant polymers and resins.
• Specialty Polymer Modifier: Employed to introduce phosphinate groups into polymer chains, enhancing properties like adhesion, thermal stability, or flame resistance.
• Organic Synthesis Reagent: Utilized in various organic transformations, including cross-coupling reactions and as a protecting group in multi-step syntheses.

Basic Information

Product Name	Ethyl-Phenyl-Phosphinic Acid Methyl Ester
CAS No.	6829-76-1
Molecular Formula	C9H13O2P
Molecular Weight	184.17 g/mol
Synonyms	Methyl ethyl(phenyl)phosphinate; Ethyl(phenyl)phosphinic acid methyl ester; Methyl ethylphenylphosphinate; Ethyl-phenyl-phosphinic acid methyl ester; Phenyl-ethyl-phosphinic acid methyl ester; (Ethyl)(phenyl)phosphinic acid methyl ester; Methyl (ethyl)(phenyl)phosphinate
EINECS	Contact for details

Quality Control

Our Ethyl-Phenyl-Phosphinic Acid Methyl Ester is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including chromatography (HPLC/GC) and spectroscopic methods (NMR, IR), to ensure high chemical purity and identity confirmation. Certificates of Analysis (COA) detailing purity, assay, and impurity profiles are provided with every shipment to guarantee consistent quality and traceability for your critical applications.

Storage

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

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Purity (GC)	≥ 96.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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