Description

n-[3-(Tributoxysilyl)Propyl]Ethylenediamine CAS NO 51895-55-7 is a bifunctional organosilane coupling agent featuring both a primary amine and a hydrolyzable alkoxysilane group. This unique structure makes it a critical component for enhancing adhesion and compatibility between inorganic materials and organic polymers. It is essential for formulators and manufacturers in the coatings, adhesives, and composites industries seeking to improve product performance and durability.

Application

• As a coupling agent and adhesion promoter in epoxy, polyurethane, and acrylic-based coatings and sealants.
• For surface modification of fillers and pigments (e.g., silica, glass fibers, metals) to improve dispersion and bonding in polymer matrices.
• In the formulation of mineral-filled composites and engineering plastics to enhance mechanical properties and moisture resistance.
• As a key intermediate in the synthesis of specialized silane-modified polymers and resins.
• For primer applications on metal, glass, and concrete substrates to ensure superior coating adhesion.
• In the production of moisture-curable systems where it acts as a crosslinker and stabilizer.

Basic Information

Product Name	n-[3-(Tributoxysilyl)Propyl]Ethylenediamine
CAS No.	51895-55-7
Molecular Formula	C17H40N2O3Si
Molecular Weight	348.60 g/mol
Synonyms	3-(2-Aminoethylamino)propyltri-n-butoxysilane; N-(2-Aminoethyl)-3-aminopropyltri-n-butoxysilane; Ethylenediamine, N-[3-(tri-n-butoxysilyl)propyl]-; Aminoethylaminopropyltri-n-butoxysilane; AEAPTBS; Silane A-1120 (common trade name reference); Tri-n-butoxy[3-[(2-aminoethyl)amino]propyl]silane; N-(3-Tri-n-butoxysilylpropyl)ethylenediamine
EINECS	257-523-5

Quality Control

Our n-[3-(Tributoxysilyl)Propyl]Ethylenediamine is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including assay by titration and impurity profiling, to ensure it meets precise chemical and physical specifications. Certificates of Analysis (COA) documenting purity, identity, and key parameters are provided to guarantee consistent performance and reliability for your formulations.

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/59-77°F). Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed when not in use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (Titration)	≥ 95.0%
Refractive Index (n20/D)	1.430 - 1.440
Density (g/mL, 20°C)	0.920 - 0.940

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