Description

Ethynylmethoxydimethylsilane is a specialized organosilicon compound featuring a reactive ethynyl group and a methoxy substituent on a silicon atom. This unique structure makes it a valuable cross-linking agent and a versatile building block in advanced material synthesis, enabling the introduction of silicon and acetylene functionality into polymer backbones. It is essential for manufacturers and R&D chemists in the silicone polymers, adhesives, and specialty coatings sectors who require precise molecular control for developing high-performance materials.

Application

• Cross-linking agent in the synthesis of heat-curable silicone resins and elastomers.
• Key monomer for producing acetylene-functionalized polysiloxanes used in specialty release coatings and adhesives.
• Surface modification reagent for introducing hydrophobic or reactive sites onto inorganic materials like silica or glass.
• Intermediate in organic synthesis and pharmaceutical research for constructing complex molecular architectures.
• Precursor for silicon-containing dendrimers and hyperbranched polymers.
• Component in sol-gel processes for creating hybrid organic-inorganic materials with tailored properties.

Basic Information

Product Name	Ethynylmethoxydimethylsilane
CAS No.	32957-38-3
Molecular Formula	C5H10OSi
Molecular Weight	114.22 g/mol
Synonyms	Dimethyl(methoxy)ethynylsilane; (Ethynyl)dimethylmethoxysilane; Methoxy(ethynyl)dimethylsilane; Ethynyl(methoxy)dimethylsilane; Silane, ethynylmethoxydimethyl-; Dimethylmethoxyethynylsilane; (Methoxydimethylsilyl)acetylene
EINECS	Contact for details

Quality Control

Our Ethynylmethoxydimethylsilane is manufactured under strict quality protocols. Each batch undergoes comprehensive analytical testing, including GC, NMR, and FTIR, to verify identity, purity, and consistency. We provide full traceability and Certificates of Analysis (COA) are available upon request to ensure it meets your specific application requirements.

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). Due to its hygroscopic and highly volatile nature, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent moisture absorption and degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Water Content (KF)	≤ 0.1%

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