Description

11-Aminoundecyltriethoxysilane is a bifunctional organosilane coupling agent featuring a long-chain alkoxysilane group and a primary amine functional group. This unique structure makes it a critical component for creating durable chemical bonds between inorganic substrates and organic polymers or resins. It is essential for industries requiring enhanced adhesion, surface modification, and the development of composite materials with superior mechanical properties. Key users include manufacturers in the coatings, adhesives, sealants, elastomers (CASE), plastics, and advanced materials sectors.

Application

• Surface Modification: Used as a primer or additive to improve the adhesion of paints, inks, and coatings to metal, glass, and mineral surfaces.
• Filler & Reinforcement Treatment: Coupling agent for silica, clay, glass fibers, and other mineral fillers in polymer composites (e.g., rubber, nylon, epoxy) to enhance dispersion and interfacial strength.
• Adhesive & Sealant Formulation: Incorporated to boost bonding performance and durability of structural adhesives, sealants, and encapsulants.
• Nanomaterial Functionalization: A key reagent for grafting amine groups onto nanoparticles (e.g., silica, quantum dots) for further chemical modification and bio-conjugation.
• Corrosion-Resistant Coatings: Enhances the protective properties and substrate adhesion of anti-corrosion coatings for automotive and aerospace components.
• Dental & Biomedical Materials: Employed to modify surfaces of implants or fillers to promote biocompatibility and integration with biological tissues.

Basic Information

Product Name	11-Aminoundecyltriethoxysilane
CAS No.	116821-45-5
Molecular Formula	C17H39NO3Si
Molecular Weight	333.59 g/mol
Synonyms	(3-Triethoxysilylundec-1-yl)amine; 11-Aminoundecyl triethoxysilane; N-[3-(Triethoxysilyl)propyl]undec-10-en-1-amine (related precursor); Amino C11 triethoxysilane; Undec-10-en-1-aminotriethoxysilane; γ-Aminoundecyltriethoxysilane; Triethoxy(11-aminoundecyl)silane; Silane coupling agent, amino-terminated long chain
EINECS	Contact for details

Quality Control

Our production of 11-Aminoundecyltriethoxysilane adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including assay (GC/HPLC), identity confirmation (IR, NMR), and impurity profiling, to ensure consistency and high purity. A Certificate of Analysis (COA) detailing all test results is provided with every shipment. We support compliance with relevant global regulatory frameworks, including REACH.

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). Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen) after opening to prevent hydrolysis and degradation. Keep away from strong acids and oxidizers.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 95.0%
Refractive Index (n20/D)	1.440 - 1.450
Density (g/mL, 25°C)	0.910 - 0.930
Amino Value	Contact for details

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