Description

11-Acetoxyundecyltrichlorosilane is a specialized organosilicon compound featuring a long alkyl chain terminated with an acetoxy group and a reactive trichlorosilyl head. This bifunctional structure makes it a valuable surface modification agent and coupling agent, enabling the creation of stable, functionalized interfaces on inorganic substrates. It is primarily used by manufacturers in the advanced materials, specialty coatings, and nanotechnology sectors to impart specific surface properties such as hydrophobicity, adhesion promotion, or bio-compatibility.

Application

• Surface Modification of Inorganic Oxides: Used to create self-assembled monolayers (SAMs) on glass, silicon, silica, and metal oxide surfaces for controlled wettability and chemical resistance.
• Adhesion Promoter in Composite Materials: Acts as a coupling agent to improve the bond between organic polymers (e.g., epoxies, polyurethanes) and inorganic fillers or reinforcements like glass fibers.
• Nanoparticle Functionalization: Essential for covalently attaching organic ligands or polymers to the surface of nanoparticles (e.g., silica, titania) to control dispersion and reactivity in advanced formulations.
• Biointerface Engineering: Serves as a versatile linker for immobilizing biomolecules, peptides, or proteins onto sensor surfaces and medical device coatings.
• Hydrophobic Coating Precursor: The long hydrocarbon chain facilitates the development of durable water-repellent and anti-fouling coatings for optical, electronic, and marine applications.
• Chromatography Stationary Phase Synthesis: Employed in the derivatization of silica gel to create specialized phases for analytical and preparative separations.

Basic Information

Product Name	11-Acetoxyundecyltrichlorosilane
CAS No.	53605-77-9
Molecular Formula	C15H29Cl3O2Si
Molecular Weight	375.84 g/mol
Synonyms	11-(Acetyloxy)undecyltrichlorosilane; Undecyl, 11-(acetyloxy)-, trichloro deriv.; Trichloro[11-(acetyloxy)undecyl]silane; 11-Acetoxyundecyltrichlorosilane; 11-(Acetoxy)undecyltrichlorosilane; Acetoxyundecyltrichlorosilane; (11-Acetoxyundecyl)trichlorosilane
EINECS	Contact for details

Quality Control

Our production of 11-Acetoxyundecyltrichlorosilane adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including GC, NMR, and FTIR for identity confirmation and purity assessment. We provide a detailed Certificate of Analysis (COA) with every shipment, documenting key specifications to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. Due to its moisture-sensitive (hygroscopic) nature, containers must be kept sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent hydrolysis. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 95.0%
Chloride Content	28.0 - 29.5 %
Density (at 20°C)	1.10 - 1.15 g/mL
Refractive Index (n20D)	1.460 - 1.470

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