Description

Ethynyldimethylethoxysilane is a specialized organosilicon compound featuring both an ethynyl group and an ethoxysilane moiety, making it a versatile building block in advanced material synthesis. Its unique bifunctional structure allows it to act as a reactive intermediate, facilitating the introduction of silicon-based functionality and cross-linking capabilities into polymer chains and surfaces. This product is essential for R&D and production in industries focused on creating high-performance silicones, adhesion promoters, and surface-modifying agents.

Application

• As a key monomer or cross-linking agent in the synthesis of specialty silicone polymers and resins.
• As a surface modification reagent to introduce hydrophobic or reactive sites onto inorganic materials like glass, silica, or metals.
• As an adhesion promoter in advanced composite materials and coatings to improve bonding between organic polymers and inorganic substrates.
• In the production of silane coupling agents tailored for specific industrial applications.
• As a precursor in sol-gel chemistry for creating hybrid organic-inorganic materials with tailored properties.
• For research and development of novel materials in electronics, optics, and nanotechnology.

Basic Information

Product Name	Ethynyldimethylethoxysilane
CAS No.	32957-37-2
Molecular Formula	C6H12OSi
Molecular Weight	128.25 g/mol
Synonyms	Dimethyl(ethynyl)ethoxysilane; Ethynyldimethylethoxysilane; Ethynyl(dimethyl)ethoxysilane; (Ethynyl)dimethylethoxysilane; Ethoxy(dimethyl)ethynylsilane; (Dimethylethoxysilyl)acetylene; 1-Ethoxy-1,1-dimethyl-2-propynylsilane; EINECS 251-317-8
EINECS	251-317-8

Quality Control

Our Ethynyldimethylethoxysilane is produced under stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including chromatographic purity analysis and identity confirmation, to ensure it meets exacting standards for research and industrial use. A Certificate of Analysis (COA) detailing specific results for purity, identity, and key physical properties is provided with every shipment to guarantee traceability and consistency.

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 compound is hygroscopic (moisture-sensitive); containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Density (at 20°C)	0.82 - 0.86 g/mL
Refractive Index (n20D)	1.410 - 1.420

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