Description

Ethyltrimethylsilane is a versatile organosilicon compound, specifically a trialkylsilane, known for its role as a key building block and reagent in advanced chemical synthesis. Its value lies in its ability to act as a silylating agent and a precursor for more complex silicon-containing materials, offering reliability and consistency for industrial processes. This product is essential for manufacturers and R&D teams in the pharmaceutical, agrochemical, and specialty polymer sectors who require high-purity intermediates for silane chemistry.

Application

• Silylation Reagent: Used to introduce the trimethylsilyl (TMS) protecting group onto alcohols, amines, and other functional groups in fine chemical and pharmaceutical synthesis.
• Precursor for Silicones: Serves as a starting material or modifier in the production of specialized silicone oils, resins, and elastomers.
• Surface Modification: Employed to hydrophobize surfaces of silica, glass, or metals for improved performance in coatings and composites.
• Semiconductor Manufacturing: Utilized in chemical vapor deposition (CVD) processes as a silicon source for thin-film coatings.
• Catalyst and Ligand Synthesis: Acts as an intermediate in the preparation of organosilicon ligands and catalysts for homogeneous catalysis.
• Research & Development: A valuable tool in academic and industrial labs for exploring new organosilicon chemistry and material science applications.

Basic Information

Product Name	Ethyltrimethylsilane
CAS No.	3439-38-1
Molecular Formula	C5H14Si
Molecular Weight	102.25 g/mol
Synonyms	Triethylmethylsilane (common misnomer); (Ethyl)(trimethyl)silane; Ethyl-trimethyl-silane; Silane, ethyltrimethyl-; ETMS; NSC 66430; 1-Ethyl-1,1,1-trimethylsilane
EINECS	222-350-5

Quality Control

Our Ethyltrimethylsilane is produced under stringent quality management systems. Every batch undergoes comprehensive analytical testing, including Gas Chromatography (GC) and Nuclear Magnetic Resonance (NMR), to ensure high chemical purity and identity confirmation. We provide detailed Certificates of Analysis (COA) with each shipment to guarantee traceability and compliance with your specifications and relevant industry standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from heat and ignition sources. Due to its highly volatile and hygroscopic nature, the container should be kept tightly sealed under an inert atmosphere (e.g., nitrogen) to prevent moisture absorption and degradation. Recommended storage temperature: 2-8°C (refrigerated) for long-term stability.

Specification

Item	Specification
Appearance	Colorless clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.1%
Density (at 20°C)	0.70 - 0.73 g/mL
Refractive Index (n20/D)	1.390 - 1.395

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