Description

Diethyl Ethylphosphonite is a versatile organophosphorus compound primarily used as a key intermediate in the synthesis of complex molecules. Its value lies in its role as a phosphonylation reagent, enabling the efficient construction of carbon-phosphorus bonds critical for advanced material and pharmaceutical development. This chemical is essential for researchers and manufacturers in the agrochemical, pharmaceutical, and specialty chemical industries seeking to develop novel active ingredients and functional materials.

Application

• Agrochemical Intermediate: A crucial building block for synthesizing novel organophosphate and phosphonate-based pesticides, herbicides, and plant growth regulators.
• Pharmaceutical Synthesis: Used in the preparation of phosphonate analogs of biologically active compounds, which are important for drug discovery, particularly in antiviral and bone metabolism research.
• Ligand Precursor: Serves as a starting material for the synthesis of specialized phosphonite ligands used in homogeneous catalysis and transition metal chemistry.
• Flame Retardant Synthon: Employed in the development of phosphorus-containing flame retardants and plasticizers for polymer materials.
• Material Science Research: Utilized in the creation of novel phosphorus-containing polymers, coatings, and electronic materials.
• Organic Synthesis Reagent: Acts as a reagent in Horner-Wadsworth-Emmons (HWE) and related olefination reactions to form alkenes.

Basic Information

Item	Detail
Product Name	Diethyl Ethylphosphonite
CAS No.	2651-85-6
Molecular Formula	C6H15O2P
Molecular Weight	150.16 g/mol
Synonyms	Ethylphosphonic Acid Diethyl Ester; Diethyl Ethylphosphonite; Ethyl Diethylphosphonite; Diethoxy(ethyl)phosphine; (Diethoxyphosphoryl)ethane; Ethylphosphonous Acid Diethyl Ester; NSC 88566
EINECS	220-190-1

Quality Control

Our Diethyl Ethylphosphonite is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including GC, NMR, and Karl Fischer titration, to ensure high purity and consistency. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming compliance with agreed specifications.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry, and well-ventilated place. Due to its hygroscopic and easily oxidized nature, the container must be kept tightly sealed after each use to minimize exposure to moisture and air. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Purity (GC)	≥ 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.