Description

n-(2-Aminoethyl)-3-Aminopropyl-Silantriol is a bifunctional organosilane featuring both primary amine and silanol groups, making it a highly versatile coupling agent and surface modifier. This unique structure is critical for creating strong covalent bonds between inorganic substrates and organic polymers, significantly enhancing composite material performance. It is essential for manufacturers in the coatings, adhesives, sealants, and advanced composites industries seeking to improve adhesion, mechanical strength, and durability.

Application

• As a coupling agent in fiberglass-reinforced plastics and mineral-filled composites to improve interfacial adhesion and mechanical properties.
• As a surface treatment agent for glass, silica, metals, and other inorganic materials to promote organic coating adhesion.
• As a key monomer or crosslinker in the synthesis of specialized silicon-based polymers and hybrid organic-inorganic materials.
• In the formulation of adhesives and sealants to enhance bonding to difficult substrates and environmental resistance.
• For the modification of nanoparticles and fillers to improve their dispersion and compatibility within polymer matrices.
• In the production of water-based coatings and inks to improve substrate wetting and film integrity.

Basic Information

Product Name	n-(2-Aminoethyl)-3-Aminopropyl-Silantriol
CAS No.	68400-09-9
Molecular Formula	C5H16N2O3Si
Molecular Weight	180.28 g/mol
Synonyms	3-(2-Aminoethylamino)propylsilanetriol; N-[3-(Trihydroxysilyl)propyl]ethylenediamine; (3-Trihydroxysilylpropyl)ethylenediamine; AEAPT; Aminoethylaminopropylsilanetriol; N-2-Aminoethyl-γ-aminopropylsilanetriol; N-(2-Aminoethyl)-3-aminopropyltrihydroxysilane; AAPTES triol
EINECS	Contact for details

Quality Control

Our n-(2-Aminoethyl)-3-Aminopropyl-Silantriol is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including assay, identification, and impurity profiling, to ensure it meets precise specifications and consistent performance for your applications. A comprehensive Certificate of Analysis (COA) documenting purity, physical properties, and stability data is available for every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed under dry, inert conditions to prevent degradation. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms
Assay (Titration)	≥ 95.0%
Water Content (KF)	≤ 1.0%
Refractive Index (20°C)	1.460 - 1.480
Density (20°C)	1.10 - 1.30 g/mL

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