Description

m-Peg3-Triethoxysilane is a specialized organosilicon compound featuring a triethoxysilane head group linked to a methoxy-terminated triethylene glycol (PEG) spacer. This bifunctional structure is engineered to provide a robust, hydrolytically stable anchor for organic molecules onto inorganic surfaces like glass, silica, and metals. It is essential for researchers and manufacturers in advanced materials science who require precise surface modification to control properties such as hydrophilicity, biocompatibility, and chemical resistance. The compound is particularly valuable for creating functionalized interfaces in biomedical devices, chromatography media, and high-performance coatings.

Application

• Surface Functionalization Agent: For modifying glass, silicon wafers, and metal oxides to introduce hydrophilic, non-fouling PEG layers.
• Bioconjugation & Biomedical Coatings: As a linker molecule for immobilizing proteins, peptides, or drugs onto implantable medical devices and diagnostic platforms.
• Chromatography Media: To create hydrophilic interaction liquid chromatography (HILIC) stationary phases with controlled surface chemistry.
• Adhesion Promoter: In specialty polymer composites and sealants to improve bonding between organic resins and inorganic fillers or substrates.
• Nanoparticle Capping Ligand: For stabilizing metal or metal oxide nanoparticles (e.g., silica, iron oxide) in aqueous and biological media.
• Hydrogel & Biomaterial Synthesis: As a crosslinking agent or functional monomer for synthesizing PEG-based hydrogels with silane anchoring points.

Basic Information

Product Name	m-Peg3-Triethoxysilane
CAS No.	2243566-45-0
Molecular Formula	C13H30O6Si
Molecular Weight	310.46 g/mol
Synonyms	2-[2-[2-(2-Methoxyethoxy)ethoxy]ethoxy]ethyltriethoxysilane; (3-(2-(2-(2-Methoxyethoxy)ethoxy)ethoxy)propyl)triethoxysilane; Triethoxy(3-(2-(2-(2-methoxyethoxy)ethoxy)ethoxy)propyl)silane; mPEG3-triethoxysilane; PEG3-triethoxysilane; Silane-PEG3-OMe; Methoxy-PEG3-triethoxysilane; 3-(Triethoxysilyl)propyl-PEG3-methyl ether
EINECS	Contact for details

Quality Control

Our m-Peg3-Triethoxysilane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including NMR, HPLC, and Karl Fischer titration, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment. We support compliance with relevant research and industry standards, and custom purity grades are available upon request.

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 (moisture-sensitive) nature, the container must be kept sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent hydrolysis and degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95%
Water Content (KF)	≤ 0.5%

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