Description

11-Chloroundecyltrichlorosilane is a specialized organosilicon compound featuring a long alkyl chain terminated with a reactive chlorosilane group and a chloroalkyl end. This unique bifunctional structure makes it a critical intermediate for creating covalently bonded organic monolayers on inorganic surfaces, particularly silicon, glass, and metals. It is essential for manufacturers and R&D teams in advanced materials science, nanotechnology, and surface engineering who require precise surface modification to alter wettability, adhesion, or introduce specific functional groups. The compound is commercially available under CAS number 17963-32-5.

Application

• Surface Modification Agent: Used to create self-assembled monolayers (SAMs) on silicon wafers, glass, and metal oxides for controlled surface properties.
• Adhesion Promotion: Acts as a coupling agent to improve the bond between organic polymers and inorganic substrates in composite materials and coatings.
• Nanotechnology Fabrication: Serves as a precursor for functionalizing nanoparticles and nanostructures to tailor their interaction with biological or chemical environments.
• Hydrophobic Coatings: Imparts water-repellent characteristics to surfaces for applications in microfluidics, optics, and protective layers.
• Biointerface Engineering: The chloroalkyl terminus can be further derivatized to immobilize biomolecules like proteins or DNA on sensor surfaces for diagnostic devices.
• Chemical Vapor Deposition (CVD) Precursor: Employed in the deposition of thin organic-silicon hybrid films.

Basic Information

Product Name	11-Chloroundecyltrichlorosilane
CAS No.	17963-32-5
Molecular Formula	C11H22Cl4Si
Molecular Weight	332.18 g/mol
Synonyms	11-Chloroundecyltrichlorosilane; Trichloro(11-chloroundecyl)silane; Undecyl, 11-chloro-, trichlorosilane derivative; 1-Chloro-11-(trichlorosilyl)undecane; (11-Chloroundecyl)trichlorosilane; Silane, trichloro(11-chloroundecyl)-; 11-Chloro-1-(trichlorosilyl)undecane
EINECS	Contact for details

Quality Control

Our 11-Chloroundecyltrichlorosilane is produced under stringent conditions to ensure high purity and batch-to-batch consistency, meeting the exacting requirements of advanced materials research and manufacturing. Each lot undergoes comprehensive analytical testing, including gas chromatography (GC) and NMR spectroscopy, to verify identity and purity. A Certificate of Analysis (COA) detailing all relevant specifications is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Due to its highly volatile and hygroscopic (moisture-sensitive) nature, this material must be stored under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry, and well-ventilated area. Recommended storage temperature is 2-8°C. Keep away from heat, sparks, open flames, and incompatible materials such as water, alcohols, strong bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 95%
Density (at 25°C)	~1.15 g/cm³

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