Description

Ethyldimethylchlorosilane CAS NO 6917-76-6 is a versatile organosilicon compound, specifically a chlorosilane, widely used as a key building block in organic synthesis and materials science. Its primary value lies in its ability to introduce the ethyldimethylsilyl (EDMS) protecting group or to serve as a precursor for functional siloxanes and silicone polymers. This chemical is essential for manufacturers and R&D laboratories in the pharmaceutical, agrochemical, and specialty chemical sectors seeking reliable intermediates for complex molecule synthesis and surface modification.

Application

• Silylating Agent in Organic Synthesis: Used as a protecting group for alcohols, phenols, and carboxylic acids, facilitating multi-step synthetic routes for complex molecules like pharmaceuticals and natural products.
• Precursor for Silicone Polymers: Serves as a monomer or chain terminator in the production of specific silicone oils, resins, and elastomers, imparting modified properties such as altered hydrophobicity or reactivity.
• Surface Modification Agent: Applied to modify the surface properties of silica, glass, or other inorganic materials, enhancing compatibility with organic matrices in composite materials.
• Intermediate for Specialty Silanes: Acts as a starting material for the synthesis of more complex functional silanes, such as alkoxysilanes or aminosilanes, used in adhesives, sealants, and coatings.
• Reagent in Pharmaceutical Intermediates: Employed in the synthesis of active pharmaceutical ingredients (APIs) where precise protection and deprotection steps are required.
• Research & Development: A valuable tool in academic and industrial R&D for developing new synthetic methodologies and advanced materials.

Basic Information

Product Name	Ethyldimethylchlorosilane
CAS No.	6917-76-6
Molecular Formula	C4H11ClSi
Molecular Weight	122.67 g/mol
Synonyms	Chloroethyldimethylsilane; Dimethylethylchlorosilane; Ethyldimethylsilyl chloride; EDMS-Cl; (Chlorodimethylsilyl)ethane; NSC 93766; EINECS 230-040-8
EINECS	230-040-8

Quality Control

Our Ethyldimethylchlorosilane is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing, including GC (Gas Chromatography) for purity and identity confirmation, to ensure it meets high-purity standards suitable for synthetic applications. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical properties is provided with every shipment to guarantee traceability and consistency for our global B2B clients.

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 hygroscopic and moisture-sensitive nature, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent hydrolysis. Incompatible with strong bases, strong acids, and alcohols. Recommended storage temperature: 2-8°C for extended shelf life.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Density at 20°C	0.88 - 0.90 g/mL
Refractive Index (n20D)	1.415 - 1.420
Water Content (KF)	≤ 0.1%

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