Description

Bis(Trimethylsilyl) Diethyl Silicate is a specialized organosilicon compound that serves as a versatile silylating agent and a key building block in advanced material synthesis. Its unique structure, featuring both trimethylsilyl and ethoxy groups, makes it highly valuable for introducing silicon-based functionalities into organic molecules. This chemical is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries who require precise control over molecular architecture and surface properties.

Application

• Silylating Agent: Used for the protection of hydroxyl groups in complex multi-step organic synthesis, particularly in pharmaceutical intermediates.
• Surface Modification: Acts as a coupling agent or surface treatment for silica, glass, and other inorganic materials to impart hydrophobic properties.
• Precursor for Silicones: Serves as a monomer or cross-linking agent in the synthesis of specialty silicone resins and elastomers with tailored properties.
• Adhesion Promotion: Enhances the adhesion between organic polymers and inorganic substrates in coatings, sealants, and composite materials.
• Electronics & Semiconductor: Employed in the production of low-k dielectric materials and as a precursor in chemical vapor deposition (CVD) processes.
• Laboratory Reagent: Utilized in analytical chemistry and research as a derivatization agent for gas chromatography (GC) analysis of polar compounds.

Basic Information

Product Name	Bis(Trimethylsilyl) Diethyl Silicate
CAS No.	3555-45-1
Molecular Formula	C10H28O4Si3
Molecular Weight	296.59 g/mol
Synonyms	Diethyl Bis(trimethylsilyl) Silicate; 1,1-Diethoxy-3,3,3-trimethyl-2-[trimethylsilyl]oxy]-1,3-disilapropane; Bis(trimethylsiloxy)diethoxysilane; Diethoxydi(trimethylsiloxy)silane; Silane, diethoxybis(trimethylsiloxy)-; NSC 163083; Ethyl Silicate, Bis(trimethylsilyl) Derivative
EINECS	222-603-5

Quality Control

Our Bis(Trimethylsilyl) Diethyl Silicate is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including gas chromatography (GC) and nuclear magnetic resonance (NMR) spectroscopy, to ensure high purity and consistency. We provide comprehensive Certificates of Analysis (COA) with every shipment, detailing key parameters such as assay, identity, and impurity profiles. Our quality system is designed to meet the stringent requirements of research and industrial-scale applications.

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 clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Water Content (Karl Fischer)	≤ 0.1%
Density (at 20°C)	0.90 - 0.95 g/mL
Refractive Index (n20D)	1.390 - 1.400

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