Description

Diethyl Phenylphosphonate is a versatile organophosphorus compound widely used as a key intermediate in organic synthesis. Its primary value lies in its role as a phosphorylating agent and a crucial building block for the preparation of more complex phosphorus-containing molecules. This product is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries, where it facilitates the synthesis of ligands, flame retardants, and biologically active compounds.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of various active pharmaceutical ingredients (APIs) and drug candidates.
• Agrochemical Synthesis: Used in the production of pesticides, herbicides, and plant growth regulators.
• Ligand and Catalyst Preparation: Serves as a starting material for synthesizing phosphine ligands used in homogeneous catalysis and cross-coupling reactions.
• Flame Retardant Formulations: Acts as an intermediate in the manufacture of organophosphorus flame retardants for polymers and textiles.
• Specialty Polymer Additive: Employed in the creation of phosphorus-containing monomers for advanced polymeric materials.
• Research & Development: A valuable reagent in academic and industrial R&D labs for exploring new synthetic methodologies.

Basic Information

Product Name	Diethyl Phenylphosphonate
CAS No.	1754-49-0
Molecular Formula	C10H15O3P
Molecular Weight	214.20 g/mol
Synonyms	Phenylphosphonic Acid Diethyl Ester; Diethyl Phenylphosphonite; Ethyl Phenylphosphonate; Diethoxy(phenyl)phosphine Oxide; Phenyl Diethyl Phosphonate; DEPP; EINECS 217-150-0
EINECS	217-150-0

Quality Control

Our Diethyl Phenylphosphonate is produced under stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including GC, HPLC, and NMR, to ensure identity, purity, and consistency. We provide detailed Certificates of Analysis (COA) with each shipment, documenting all critical specifications. Our quality systems are designed to meet the rigorous demands of GMP and ISO standards where applicable.

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 and oxidizing agents. Recommended storage temperature is between 15°C and 25°C (59°F and 77°F). Keep container tightly sealed when not in use to minimize moisture absorption and degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.510 - 1.520
Density (20°C)	1.090 - 1.110 g/mL

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