Description

Peg5-Bis(Phosphonic Acid Diethyl Ester) is a specialized organophosphorus compound featuring a polyethylene glycol (PEG) spacer terminated with phosphonate ester groups. This unique bifunctional structure makes it a valuable intermediate for creating functionalized materials with tailored surface properties and chelating capabilities. It is primarily sought by researchers and manufacturers in the fields of materials science, surface modification, and specialty chemical synthesis.

Application

• Surface Modification Agent: Used to create self-assembled monolayers (SAMs) on metal oxides (e.g., titanium, stainless steel) to impart hydrophilicity, corrosion resistance, or specific biorecognition sites.
• Polymer Additive & Crosslinker: Acts as a reactive monomer or crosslinking agent in polymer formulations to introduce phosphonate functionality, enhancing adhesion to mineral surfaces or flame retardancy.
• Chelating Ligand Precursor: Serves as a starting material for synthesizing more complex ligands for metal ion sequestration, catalysis, or medical imaging applications after hydrolysis of the ester groups.
• Nanomaterial Functionalization: Employed to coat nanoparticles (quantum dots, iron oxide) with a PEG-phosphonate layer, improving colloidal stability in aqueous and biological media.
• Dental & Biomedical Coatings: Investigated for modifying implant surfaces to promote osseointegration (bone bonding) due to the strong affinity of phosphonates for calcium in hydroxyapatite.
• Scale Inhibition & Water Treatment: The phosphonic acid derivative (after deprotection) can function as an antiscalant and corrosion inhibitor in industrial water systems.

Basic Information

Product Name	Peg5-Bis(Phosphonic Acid Diethyl Ester)
CAS No.	106338-06-1
Molecular Formula	C18H40O11P2
Molecular Weight	494.45 g/mol
Synonyms	Diethyl (((oxybis(ethane-2,1-diyl))bis(oxy))bis(ethane-2,1-diyl))bis(phosphonate); 3,6,9,12,15-Pentaoxa-1,17-heptadecanediyldiphosphonic Acid Diethyl Ester; PEG-5 Bisphosphonate Diethyl Ester; 1,17-Bis(diethoxyphosphoryl)-3,6,9,12,15-pentaoxaheptadecane; Bis[2-[2-[2-[2-[2-(diethoxyphosphoryl)ethoxy]ethoxy]ethoxy]ethoxy]ethyl]phosphonate; (PEG-5) Diphosphonate Diester
EINECS	Contact for details

Quality Control

Our Peg5-Bis(Phosphonic Acid Diethyl Ester) is manufactured under strict quality protocols. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing specifications such as assay (by NMR or HPLC), residual solvents, and appearance is provided with every shipment to support your R&D and quality assurance 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). The product is stable under these conditions but is sensitive to strong acids and should be kept away from oxidizing agents and strong bases.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC / NMR)	≥ 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.