Description

11-Bromoundecyltrimethoxysilane is a bifunctional organosilane coupling agent featuring a long alkyl chain terminated with a bromine atom and a hydrolyzable trimethoxysilyl group. This unique structure makes it a critical intermediate for introducing reactive bromoalkyl functionalities onto inorganic surfaces or into polymer matrices. It is essential for manufacturers in advanced materials science seeking to create covalently bonded, functional interfaces. Key industries that utilize this compound include specialty polymers, surface modification, and the development of chromatographic stationary phases.

Application

• Surface Modification Agent: Used to functionalize silica, glass, metals, and other inorganic oxides to create hydrophobic or reactive surfaces for further chemical grafting.
• Polymer Synthesis Intermediate: Serves as a key monomer or cross-linking agent in the synthesis of specialty silicones, block copolymers, and hybrid organic-inorganic materials.
• Chromatography Stationary Phase Precursor: Employed in the manufacture of reversed-phase or specialty HPLC columns by bonding to silica gel, providing tailored separation properties.
• Adhesion Promoter: Enhances the bonding between organic polymers (e.g., epoxies, polyurethanes) and inorganic substrates like metals or glass in composite materials and coatings.
• Nanomaterial Functionalization: Used to modify nanoparticles (e.g., silica, quantum dots) to impart specific chemical reactivity or improve dispersion in organic solvents.
• Bioconjugation Linker: The bromoalkyl group can be further derivatized to attach biomolecules, making it useful in creating biosensors or diagnostic platforms.

Basic Information

Product Name	11-Bromoundecyltrimethoxysilane
CAS No.	17947-99-8
Molecular Formula	C14H31BrO3Si
Molecular Weight	355.39 g/mol
Synonyms	11-Bromoundecyltrimethoxysilane; (11-Bromoundecyl)trimethoxysilane; 1-Bromo-11-(trimethoxysilyl)undecane; Trimethoxy(11-bromoundecyl)silane; Undecyltrimethoxysilane, 11-bromo-; Silane, trimethoxy(11-bromoundecyl)-; Br(CH2)11Si(OCH3)3
EINECS	Contact for details

Quality Control

Our 11-Bromoundecyltrimethoxysilane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including NMR, GC, and HPLC, to ensure high purity and consistent performance. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and specific impurity profiles is provided with every shipment to support your quality assurance and R&D processes.

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). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent degradation by moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 95.0%
Refractive Index (n20D)	1.450 - 1.460
Density (g/mL, 25°C)	1.10 - 1.20

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