Description

Tetrakis(2-Methoxyethoxy)Silane is a versatile organosilicon compound characterized by its four 2-methoxyethoxy functional groups attached to a central silicon atom. This structure provides excellent solubility in polar organic solvents and water, making it a valuable precursor for sol-gel processes and surface modification. It is primarily sought by manufacturers in the electronics, coatings, and specialty chemical industries for its role as a crosslinking agent, adhesion promoter, and a source of silicon dioxide in thin-film applications.

Application

• Sol-Gel Precursor: A key starting material for the synthesis of silica-based hybrid materials, coatings, and nanoparticles via hydrolysis and condensation reactions.
• Electronics & Semiconductor Manufacturing: Used in spin-on dielectric (SOD) formulations, planarization layers, and as a passivation agent in microelectronics.
• Surface Modification & Adhesion Promotion: Functions as a coupling agent to improve the adhesion of polymers, resins, and coatings to inorganic substrates like glass, metals, and minerals.
• Specialty Resins & Polymers: Serves as a crosslinker or modifying agent in the production of silicone resins, epoxy systems, and other high-performance polymers.
• Catalyst & Ligand Synthesis: Utilized as a ligand or precursor in organometallic chemistry and catalysis research.
• Hydrophobic & Anti-Corrosive Coatings: Imparts water-repellent and protective properties to surfaces when incorporated into coating formulations.

Basic Information

Product Name	Tetrakis(2-Methoxyethoxy)Silane
CAS No.	2157-45-1
Molecular Formula	C12H28O8Si
Molecular Weight	328.44 g/mol
Synonyms	Silane, tetrakis(2-methoxyethoxy)-; Tetra(2-methoxyethoxy)silane; 2-Methoxyethoxy Silane; Silicon tetra(2-methoxyethoxide); Tetrakis(2-methoxyethoxy)silicon; Tetra(2-methoxyethoxy)silicon(IV); TMES (common abbreviation); 2157-45-1 (CAS Registry Number)
EINECS	218-474-7

Quality Control

Our Tetrakis(2-Methoxyethoxy)Silane is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing, including Gas Chromatography (GC) and Nuclear Magnetic Resonance (NMR), to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (20°C)	~1.05 g/cm³
Refractive Index (n20D)	~1.425
Water Content (Karl Fischer)	≤ 0.5%

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