Description

n-(Triethoxysilylmethyl)Ethylenediamine is a bifunctional organosilane coupling agent containing both an amine and hydrolyzable ethoxysilyl groups. This unique structure enables it to act as a powerful adhesion promoter and surface modifier, creating strong chemical bridges between inorganic substrates and organic polymers. It is essential for formulators and manufacturers in the composites, coatings, and sealants industries seeking to enhance mechanical properties, durability, and interfacial bonding.

Application

• Adhesion Promoter: Used in epoxy, polyurethane, and acrylic-based coatings and adhesives to dramatically improve bond strength to glass, metals, and mineral surfaces.
• Filler and Reinforcement Treatment: A key surface modifier for glass fibers, silica, and other mineral fillers to improve dispersion and compatibility in polymer matrices like nylon, epoxy, and rubber.
• Crosslinking Agent: Functions as a co-curing agent or crosslinker in silicone-modified polymers and RTV (Room Temperature Vulcanizing) sealants.
• Corrosion Inhibiting Primer: Incorporated into primer formulations for metals, where it forms a protective siloxane network that enhances corrosion resistance.
• Mineral and Stone Consolidation: Applied in conservation and construction to strengthen porous stone and concrete by promoting silicate network formation.
• Immobilization of Biomolecules: Utilized to functionalize glass or silica surfaces for biosensor and diagnostic device manufacturing.

Basic Information

Product Name	n-(Triethoxysilylmethyl)Ethylenediamine
CAS No.	41555-92-4
Molecular Formula	C11H28N2O3Si
Molecular Weight	264.44 g/mol
Synonyms	N-[(Triethoxysilyl)methyl]ethylenediamine; 2-[(Triethoxysilyl)methyl]amino]ethylamine; Ethylenediamine, N-(triethoxysilylmethyl)-; Aminoethylaminopropyltriethoxysilane (common industry name); Dynasylan 1122 (trade name); Silane A-1122; 3-(2-Aminoethylamino)propyltriethoxysilane (related isomer); Aminoethylaminomethyltriethoxysilane
EINECS	255-409-5

Quality Control

Our production of n-(Triethoxysilylmethyl)Ethylenediamine adheres to stringent quality management protocols. Every batch is analyzed to ensure high purity and consistency, meeting the demands of advanced material applications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and key physical properties is provided with each shipment to guarantee supply reliability and product traceability.

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 a dry inert atmosphere (e.g., nitrogen) to prevent hydrolysis and degradation upon contact with atmospheric moisture.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC or Titration)	≥ 97.0%
Refractive Index (n20/D)	1.435 - 1.445
Density (g/mL, 25°C)	0.98 - 1.02

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