Description

Diethyl[4-(Ethoxycarbonyl)Butyl]Phosphonate is a high-purity organophosphorus compound with a unique bifunctional structure. This chemical serves as a versatile and critical intermediate in advanced organic synthesis, enabling the construction of complex molecular frameworks. It is essential for R&D chemists and production specialists in the pharmaceutical and agrochemical industries seeking reliable, high-quality building blocks for active ingredient development.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of complex drug molecules, particularly those requiring phosphonate or carboxylic acid ester functionalities.
• Agrochemical Synthesis: Used in the production of advanced herbicides, plant growth regulators, and other crop protection agents.
• Chemical Research & Development: A valuable reagent for Horner-Wadsworth-Emmons (HWE) olefination reactions to form α,β-unsaturated esters.
• Material Science Precursor: Employed in the development of specialty polymers, flame retardants, and ligands for metal catalysis.
• Fine Chemical Manufacturing: Serves as a strategic intermediate for producing other high-value, functionalized organophosphorus compounds.

Basic Information

Product Name	Diethyl[4-(Ethoxycarbonyl)Butyl]Phosphonate
CAS No.	2323-74-2
Molecular Formula	C11H23O5P
Molecular Weight	266.27 g/mol
Synonyms	Diethyl (4-Carbethoxybutyl)Phosphonate; Diethyl 4-(Ethoxycarbonyl)Butylphosphonate; (4-Ethoxycarbonylbutyl)phosphonic Acid Diethyl Ester; Diethyl P-(3-Carbethoxypropyl)Phosphonate; Ethyl 5-(Diethoxyphosphoryl)pentanoate; Diethyl 5-Ethoxy-5-oxopentylphosphonate; Butylphosphonic acid, 4-(ethoxycarbonyl)-, diethyl ester; Diethyl (4-Ethoxycarbonylbutyl)Phosphonate
EINECS	219-034-1

Quality Control

Our Diethyl[4-(Ethoxycarbonyl)Butyl]Phosphonate is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC and NMR analysis, to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment to guarantee it meets your precise research or production requirements.

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. The container should be kept tightly sealed to minimize moisture absorption.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.435 - 1.445
Density (20°C)	1.08 - 1.12 g/mL

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