Description

Diethyl Undecylphosphonate is a high-purity organophosphorus compound with the CAS registry number 92795-72-7. This specialty chemical serves as a versatile intermediate and ligand, valued for its unique combination of a long alkyl chain and a phosphonate ester functional group. It is essential for researchers and manufacturers in the fields of coordination chemistry, extractive metallurgy, and advanced material science, where it functions as a key building block for catalysts and metal-complexing agents.

Application

• Metal Extraction & Separation: Acts as a selective extractant or ligand for the separation and purification of rare earth elements, lanthanides, and transition metals in hydrometallurgical processes.
• Catalyst Synthesis: Serves as a precursor or ligand in the development of homogeneous catalysts for organic synthesis, including cross-coupling and polymerization reactions.
• Flame Retardant Formulations: Used as an intermediate or additive component in the synthesis of phosphorus-based flame retardants for polymers and textiles.
• Lubricant & Fuel Additives: Functions as an anti-wear or extreme pressure additive in advanced lubricant formulations and as a stabilizer in fuel systems.
• Surface Modification Agent: Employed to modify material surfaces for improved adhesion, corrosion resistance, or specific functional properties.
• Pharmaceutical & Agrochemical Intermediates: Provides a key phosphonate synthon in the research and development of active pharmaceutical ingredients (APIs) and agrochemicals.

Basic Information

Product Name	Diethyl Undecylphosphonate
CAS No.	92795-72-7
Molecular Formula	C₁₅H₃₃O₃P
Molecular Weight	292.40 g/mol
Synonyms	Diethyl undecylphosphonate; Undecylphosphonic acid diethyl ester; Diethyl n-undecylphosphonate; Diethyl 1-phosphonoundecane; Diethyl phosphonoundecane; 1-Undecylphosphonic acid diethyl ester; (Diethoxyphosphoryl)undecane; Phosphonic acid, undecyl-, diethyl ester
EINECS	Contact for details

Quality Control

Our Diethyl Undecylphosphonate is produced under stringent quality management systems. Every batch undergoes comprehensive analytical testing, including chromatography (GC/HPLC) and spectroscopic methods (NMR, IR), to ensure identity, purity, and consistency. A Certificate of Analysis (COA) detailing all specifications is provided with each shipment, and we support compliance with relevant global regulatory frameworks.

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 acids and oxidizing agents. Recommended storage temperature is between 15°C and 25°C. Keep the container tightly sealed to minimize moisture absorption and degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Density (20°C)	~0.95 g/mL
Refractive Index (20°C)	~1.445

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