Description

3-(Azidopropyl)Triethoxysilane is a specialized bifunctional organosilane coupling agent, uniquely combining a reactive azide group with a hydrolysable triethoxysilane moiety. This dual functionality makes it a critical intermediate for surface modification and covalent bonding strategies in advanced materials science. It is essential for researchers and manufacturers in the adhesives, sealants, coatings, and specialty polymer industries seeking to introduce click-chemistry compatible azide functionalities onto inorganic substrates or polymer backbones.

Application

• Surface Priming Agent: Used to functionalize glass, silica, metals, and other inorganic surfaces with azide groups for subsequent click-chemistry reactions (e.g., Huisgen 1,3-dipolar cycloaddition) with alkynes.
• Adhesive & Sealant Formulation: Acts as an adhesion promoter, enhancing the bond strength between organic polymers and inorganic substrates in high-performance composites and coatings.
• Polymer Modification: Incorporated as a monomer or grafting agent to introduce cross-linking sites or reactive handles into silicones, epoxies, and other polymer systems.
• Bioconjugation & Life Sciences: Serves as a linker molecule for immobilizing biomolecules (proteins, oligonucleotides) onto solid supports for biosensor and diagnostic device fabrication.
• Nanomaterial Functionalization: Key for modifying nanoparticles (silica, quantum dots) to improve dispersion in organic matrices and enable targeted functionalization.
• Hydrophobic Coatings: Imparts water-repellent properties to surfaces while providing a platform for further chemical modification.

Basic Information

Product Name	3-(Azidopropyl)Triethoxysilane
CAS No.	83315-69-9
Molecular Formula	C9H21N3O3Si
Molecular Weight	247.37 g/mol
Synonyms	Azidopropyltriethoxysilane; 3-Azidopropyltriethoxysilane; (3-Azidopropyl)triethoxysilane; Triethoxy(3-azidopropyl)silane; Silane, triethoxy(3-azidopropyl)-; Azido-PTES; N3-PTES; γ-Azidopropyltriethoxysilane
EINECS	Contact for details

Quality Control

Our production of 3-(Azidopropyl)Triethoxysilane adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including GC, HPLC, and NMR, to ensure identity, purity, and consistency. We provide a detailed Certificate of Analysis (COA) with each shipment, documenting key specifications. Our quality system is designed to meet the rigorous demands of research, development, and industrial-scale manufacturing.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C/59-77°F) under an inert atmosphere (e.g., nitrogen or argon) to prevent oxidation and moisture absorption. Keep away from heat, sparks, open flames, and incompatible materials such as strong acids and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Refractive Index (n20D)	1.420 - 1.425
Density (g/mL, 25°C)	1.00 - 1.05

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