Description

11-(Triethoxysilyl)Undecanal is a bifunctional organosilane coupling agent featuring a terminal aldehyde group and a hydrolyzable triethoxysilyl group. This unique molecular structure enables it to act as a versatile chemical bridge, facilitating strong adhesion between organic polymers and inorganic substrates like glass, metals, and minerals. It is essential for formulators and manufacturers in the coatings, adhesives, and composites industries seeking to enhance material performance, durability, and interfacial bonding.

Application

• As a key adhesion promoter in paint, coating, and sealant formulations to improve wet adhesion and corrosion resistance on metal surfaces.
• Surface modification agent for silica, glass fibers, and other mineral fillers to enhance compatibility and dispersion within polymer matrices like epoxies and polyurethanes.
• Chemical anchor for creating functionalized surfaces in biosensor and diagnostic device manufacturing, where the aldehyde group can covalently bind biomolecules.
• Precursor in the synthesis of advanced silane-based hybrid materials and sol-gel coatings with tailored surface properties.
• Crosslinking agent and modifier in silicone rubber and specialty elastomer production to improve mechanical properties.
• Used in the production of release coatings and primers for the automotive and aerospace industries.

Basic Information

Product Name	11-(Triethoxysilyl)Undecanal
CAS No.	116047-42-8
Molecular Formula	C17H36O4Si
Molecular Weight	332.56 g/mol
Synonyms	11-(Triethoxysilyl)undecanal; Undecanal, 11-(triethoxysilyl)-; 11-Triethoxysilylundecanal; 11-(Triethoxy)silylundecanal; Aldehyde-terminated triethoxysilane; Triethoxy(10-formyldecyl)silane; (10-Formyldecyl)triethoxysilane; 10-Carboxydecyltriethoxysilane (related acid form)
EINECS	Contact for details

Quality Control

Our 11-(Triethoxysilyl)Undecanal is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including GC, NMR, and FTIR analysis, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key specifications such as assay and impurity profiles. Our quality commitment ensures the material meets the high standards required for research and industrial applications.

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 product is hygroscopic (moisture-sensitive). Keep the container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to minimize moisture uptake and prevent degradation. Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 95.0%
Density (at 20°C)	~0.92 g/mL
Refractive Index (n20D)	~1.435

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