Description

Vinyltrimethylsilane is a highly reactive organosilicon monomer featuring a vinyl group attached to a trimethylsilyl moiety. This compound matters as a versatile building block in organosilicon chemistry, enabling the introduction of both vinyl functionality and silyl protection in a single step. It is primarily needed by manufacturers in the silicone polymer, specialty chemical, and pharmaceutical intermediate sectors for applications requiring controlled cross-linking or surface modification.

Application

• Silicone Polymer Modification: Acts as a reactive monomer or cross-linking agent in the synthesis of specialty silicone resins and elastomers, imparting specific cure properties and thermal stability.
• Surface Functionalization Agent: Used to modify inorganic surfaces (e.g., silica, glass) by forming stable siloxane bonds, creating hydrophobic or reactive coatings.
• Organic Synthesis Intermediate: Serves as a protected acetylene equivalent or a vinyl anion synthon in multi-step synthetic routes for pharmaceuticals and agrochemicals.
• Adhesive & Sealant Formulations: Incorporated into formulations to enhance adhesion to low-energy surfaces and improve environmental resistance.
• Release Coatings: A key component in the production of silicone-based release liners for pressure-sensitive adhesive tapes and labels.
• Rubber & Plastic Additive: Utilized as a coupling agent or processing aid to improve the dispersion of fillers and the mechanical properties of composites.

Basic Information

Product Name	Vinyltrimethylsilane
CAS No.	754-05-2
Molecular Formula	C5H12Si
Molecular Weight	100.23 g/mol
Synonyms	Ethenyltrimethylsilane; Trimethylvinylsilane; (Vinyl)trimethylsilane; VTMOS (common abbreviation); Silane, ethenyltrimethyl-; Trimethyl(vinyl)silane; Vinyl-trimethyl-silane; 1-Trimethylsilylethylene
EINECS	212-036-0

Quality Control

Our Vinyltrimethylsilane is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing, including gas chromatography (GC) for purity and identity confirmation, to ensure it meets precise specifications for industrial and research applications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat, sparks, and open flames. Due to its highly volatile nature, keep containers tightly sealed when not in use. Recommended storage temperature is 2-8°C to minimize evaporation and maintain stability. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless clear liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Density (20°C)	0.69 - 0.71 g/mL
Refractive Index (n20D)	1.395 - 1.405
Water Content (KF)	≤ 0.1%

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