Description

11-Bromoundecyltrichlorosilane is a specialized bifunctional organosilane coupling agent featuring a long alkyl chain terminated with a bromine atom and a reactive trichlorosilyl group. This unique molecular structure makes it a critical intermediate for creating self-assembled monolayers (SAMs) and for covalently modifying inorganic surfaces like silicon, glass, and metals. It is essential for researchers and manufacturers in advanced materials science and nanotechnology who require precise surface functionalization. The compound enables the introduction of specific chemical functionalities to alter surface properties such as wettability, adhesion, and biocompatibility.

Application

• Surface modification of silicon wafers, glass, and metal oxides for microelectronics and MEMS devices.
• Creation of self-assembled monolayers (SAMs) for fundamental research in nanotechnology and surface science.
• Intermediate in the synthesis of more complex silane coupling agents with tailored organic end-groups.
• Functionalization of nanoparticles (e.g., silica, gold) to improve dispersion in polymer matrices or for biomedical applications.
• Anchor molecule for immobilizing biomolecules, catalysts, or polymers onto solid supports.
• Hydrophobic or oleophobic coating precursor for specialized optical or protective surfaces.
• Building block in organic synthesis for constructing dendrimers or liquid crystalline materials.

Basic Information

Product Name	11-Bromoundecyltrichlorosilane
CAS No.	79769-48-5
Molecular Formula	C11H22BrCl3Si
Molecular Weight	368.65 g/mol
Synonyms	11-Bromoundecyltrichlorosilane; Trichloro(11-bromoundecyl)silane; Undecyl, 11-bromo-, trichlorosilane derivative; 1-Bromo-11-(trichlorosilyl)undecane; (11-Bromoundecyl)trichlorosilane; Bromoundecyltrichlorosilane; Silane, trichloro(11-bromoundecyl)-
EINECS	Contact for details

Quality Control

Our 11-Bromoundecyltrichlorosilane is produced under strict quality management protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analysis using techniques including NMR, FT-IR, and GC to verify chemical identity and purity. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting key specifications. We adhere to relevant quality standards for fine chemicals and can support development projects requiring specific analytical data.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and reacts violently with water, releasing hydrogen chloride. Keep the container tightly sealed under an inert atmosphere (argon or nitrogen) and away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 95% (Typical 97-99%)
Density (at 20°C)	~1.25 g/mL
Refractive Index (n20D)	~1.480

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