Description

Methoxyethoxyundecyltrichlorosilane is a specialized organosilicon compound designed for advanced surface modification and coupling applications. This chemical is valued for its unique molecular structure, which combines a long alkyl chain with a reactive trichlorosilyl group and a hydrophilic methoxyethoxy spacer, enabling it to bridge organic and inorganic materials effectively. It is primarily utilized by R&D scientists and process engineers in the semiconductor, advanced materials, and specialty coatings industries to enhance adhesion, introduce specific surface functionalities, and improve material compatibility.

Application

• Surface Modification Agent: Used to functionalize silica, glass, and metal oxide surfaces for improved hydrophobicity or specific chemical reactivity.
• Adhesion Promoter: Enhances the bonding between organic polymers (e.g., epoxies, polyimides) and inorganic substrates in composite materials and electronic encapsulants.
• Nanomaterial Synthesis: Serves as a capping or functionalizing agent for nanoparticles and quantum dots to control dispersion and surface chemistry.
• Chromatography Stationary Phases: Employed to derivatize silica gel for creating specialized HPLC columns with tailored separation properties.
• Release Coatings: A key intermediate in formulating silicone-based release liners for labels and adhesive tapes.
• Water Repellent Treatments: Used in the formulation of durable water repellent (DWR) coatings for textiles and construction materials.

Basic Information

Item	Details
Product Name	Methoxyethoxyundecyltrichlorosilane
CAS No.	943349-49-3
Molecular Formula	C₁₄H₂₉Cl₃O₂Si
Molecular Weight	363.82 g/mol
Synonyms	11-(2-Methoxyethoxy)undecyltrichlorosilane; Undecyl, 11-(2-methoxyethoxy)-, trichloro deriv.; Trichloro[11-(2-methoxyethoxy)undecyl]silane; (11-(2-Methoxyethoxy)undecyl)trichlorosilane; Silane, trichloro[11-(2-methoxyethoxy)undecyl]-; MEUTS; Contact for additional trade names.
EINECS	Contact for details

Quality Control

Every batch of Methoxyethoxyundecyltrichlorosilane is manufactured and tested under stringent quality management protocols to ensure high purity, consistency, and reliability for your critical applications. Our quality assurance includes comprehensive analytical testing via GC, NMR, and Karl Fischer titration. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at 15-25°C. This product is hygroscopic (moisture-sensitive) and reacts with moisture to release hydrogen chloride. Keep the container tightly sealed under an inert atmosphere (argon or nitrogen) when not in use. Store away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 95.0%
Chlorosilane Content	≥ 97.0% (by titration)
Water Content (KF)	≤ 0.1%

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