Description

1-Ethylphosphonic Cyclic Anhydride is a specialized organophosphorus compound that serves as a versatile building block in advanced chemical synthesis. Its value lies in its high reactivity as an anhydride, enabling efficient phosphorylation and the construction of complex molecular architectures. This product is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and material science industries seeking to develop novel active ingredients and functional polymers.

Application

• Pharmaceutical Intermediate: Key reagent in the synthesis of novel drug candidates, particularly those containing phosphonate or phosphate ester functionalities.
• Agrochemical Synthesis: Used in the production of advanced herbicides, plant growth regulators, and other crop protection agents.
• Ligand and Catalyst Preparation: Serves as a precursor for creating specialized phosphonate-based ligands for metal catalysis and coordination chemistry.
• Polymer Modification: Employed to introduce phosphonic acid groups into polymers, enhancing properties like flame retardancy, adhesion to metal surfaces, and biocompatibility.
• Surface Treatment Agent: Used in formulations for metal surface pretreatment and corrosion inhibition coatings.
• Research & Development: A valuable tool in academic and industrial R&D for exploring new organophosphorus chemistry and material properties.

Basic Information

Product Name	1-Ethylphosphonic Cyclic Anhydride
CAS No.	145007-52-9
Molecular Formula	C4H7O3P
Molecular Weight	134.07 g/mol
Synonyms	1-Ethylphosphonic Acid Cyclic Anhydride; Ethylphosphonic Anhydride; 2-Ethyl-1,3,2-dioxaphospholane 2-oxide; 2-Ethyl-2-oxo-1,3,2-dioxaphospholane; Ethylphosphonic Acid Cyclic Ester; Cyclic Ethylphosphonate; EPCA
EINECS	Contact for details

Quality Control

Our 1-Ethylphosphonic Cyclic Anhydride is manufactured under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including assay by titration or chromatography and identification by spectroscopic methods (IR, NMR), to ensure high purity and consistency. Certificates of Analysis (COA) detailing all specifications and test results are provided with every shipment to guarantee reliable performance in your critical applications.

Storage

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

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (HPLC/Titration)	≥ 95.0%
Water Content (KF)	≤ 0.5%

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