Description

2H-1-Benzopyran-2-One-4-Diethylphosphonate is a high-purity, synthetically valuable organophosphorus compound. This chemical serves as a crucial advanced intermediate in the synthesis of complex organic molecules, particularly in pharmaceutical and agrochemical research. It is primarily sought after by R&D chemists and process development scientists in the fine chemical, pharmaceutical, and crop protection industries for constructing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel coumarin and chromone derivatives with potential biological activity.
• Agrochemical Research: Used in developing new active ingredients for crop protection products, leveraging its phosphonate functionality.
• Organic Synthesis: Versatile reagent for Horner-Wadsworth-Emmons (HWE) olefination reactions to form carbon-carbon double bonds.
• Material Science Precursor: Intermediate in the production of specialty chemicals and functional organic materials.
• Academic & Industrial R&D: Essential for method development and exploring new synthetic pathways in medicinal and process chemistry.

Basic Information

Product Name	2H-1-Benzopyran-2-One-4-Diethylphosphonate
CAS No.	139300-90-6
Molecular Formula	C14H17O5P
Molecular Weight	296.26 g/mol
Synonyms	4-(Diethoxyphosphoryl)-2H-chromen-2-one; 4-(Diethylphosphono)coumarin; Coumarin-4-diethyl phosphonate; Diethyl (2-oxo-2H-chromen-4-yl)phosphonate; 2H-1-Benzopyran-2-one, 4-(diethylphosphono)-; 4-Coumarinylphosphonic Acid Diethyl Ester; 4-Diethylphosphonocoumarin; 139300-90-6
EINECS	Contact for details

Quality Control

Our 2H-1-Benzopyran-2-One-4-Diethylphosphonate is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting all critical quality attributes are provided and available upon request to support your regulatory and R&D needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to exclude moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%

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