Description

m-Peg5-Triethoxysilane is a specialized organosilicon compound featuring a hydrophilic polyethylene glycol (PEG) spacer linked to a reactive triethoxysilane group. This unique bifunctional structure enables it to act as a versatile coupling agent, creating stable bridges between inorganic surfaces and organic polymers or biomolecules. It is essential for researchers and manufacturers in advanced material science and life sciences seeking to modify surface properties for enhanced performance. Key industries that utilize this compound include pharmaceuticals, medical devices, nanotechnology, and specialty coatings.

Application

• Surface Modification Agent: For grafting hydrophilic PEG brushes onto silica, glass, or metal oxide surfaces to impart antifouling, non-fouling, or stealth properties.
• Bioconjugation Linker: Used to functionalize nanoparticles or diagnostic substrates for the covalent attachment of proteins, peptides, or targeting ligands in bioconjugation strategies.
• Hydrogel & Biomaterial Synthesis: As a crosslinker or functional monomer to introduce hydrolytically stable silane anchoring points into PEG-based hydrogels and polymeric networks.
• Chromatography Media: For the functionalization of silica-based stationary phases to create hydrophilic interaction liquid chromatography (HILIC) columns.
• Adhesive & Sealant Formulations: Enhances the adhesion and moisture resistance of silicone-based adhesives and sealants to various substrates.
• Nanoparticle Capping Ligand: Provides a sterically stabilizing PEG shell on quantum dots, silica nanoparticles, or other inorganic cores to improve colloidal stability in aqueous media.
• Medical Device Coatings: Applied to create biocompatible, lubricious, or protein-resistant coatings on catheters, implants, and sensors.

Basic Information

Product Name	m-Peg5-Triethoxysilane
CAS No.	2243566-42-7
Molecular Formula	C17H38O8Si
Molecular Weight	398.57 g/mol
Synonyms	2-[2-[2-[2-[2-(3-(Triethoxysilyl)propoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethanol; 3-(2,5,8,11,14-Pentaoxapentadec-1-yl)propyltriethoxysilane; mPEG5-triethoxysilane; Triethoxy[3-[2,5,8,11,14-pentaoxapentadec-1-yl]propyl]silane; PEG5-Triethoxysilane; Silane-PEG5-OH; (3-(2-(2-(2-(2-(2-Hydroxyethoxy)ethoxy)ethoxy)ethoxy)ethoxy)propyl)triethoxysilane; Hydroxy-PEG5-Triethoxysilane
EINECS	Contact for details

Quality Control

Our m-Peg5-Triethoxysilane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and NMR for structural confirmation, to ensure it meets the high standards required for research and industrial applications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment. We support compliance with relevant regulatory frameworks for advanced material synthesis.

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). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation. Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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