Description

Vinyloctyldichlorosilane is a specialized organosilicon compound characterized by a vinyl group and a long-chain octyl group attached to a reactive dichlorosilane center. This unique structure makes it a valuable intermediate for introducing hydrophobic, long-chain alkyl groups onto surfaces or into polymer backbones. It is primarily used by manufacturers in the silicone, coatings, and advanced materials industries for creating custom silane coupling agents, hydrophobic surface modifiers, and specialty polymers.

Application

• Silane Coupling Agent Precursor: Serves as a key intermediate for synthesizing custom silane coupling agents used to improve adhesion between organic polymers and inorganic substrates like glass, metals, and minerals.
• Hydrophobic Surface Modification: Used to graft long-chain alkyl groups onto silica, nanoparticles, or other surfaces, imparting significant water repellency and oleophilic properties for advanced coatings and composites.
• Silicone Polymer Modification: Incorporated into silicone polymers to modify rheological properties, increase hydrophobicity, or introduce reactive vinyl sites for further cross-linking.
• Release Coatings & Molding Agents: A building block for formulating specialty release agents and mold-making materials where a combination of vinyl reactivity and long-chain lubricity is required.
• Adhesive & Sealant Formulations: Enhances the moisture resistance and durability of high-performance adhesives and sealants by promoting interfacial bonding.
• Research & Development: Employed in R&D for developing novel hybrid organic-inorganic materials, self-assembled monolayers (SAMs), and functionalized nanomaterials.

Basic Information

Product Name	Vinyloctyldichlorosilane
CAS No.	211985-85-2
Molecular Formula	C₁₀H₂₀Cl₂Si
Molecular Weight	239.26 g/mol
Synonyms	Dichloro(vinyl)octylsilane; Octylvinyldichlorosilane; Vinyloctylsilyl dichloride; 1-Octenyldichlorosilane (ambiguous); Dichlorooctylvinylsilane; (Octylvinyl)dichlorosilane; (Vinyloctyl)dichlorosilane; Dichloro(octylvinyl)silane
EINECS	Contact for details

Quality Control

Our Vinyloctyldichlorosilane is produced under stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including GC, NMR, and Karl Fischer titration, to ensure high purity and consistency. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming compliance with agreed specifications. We adhere to cGMP principles where applicable to support our customers in regulated industries.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and reacts vigorously with water, strong acids, and bases. Keep the container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent hydrolysis and maintain product integrity. Store away from incompatible materials such as oxidizing agents and strong bases.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Water Content (KF)	≤ 0.1%
Chloride Content	Contact for details
Density (20°C)	~0.98 g/mL
Refractive Index (n20D)	~1.450

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