Description

(Aminoethylaminomethyl)Phenethyltrimethoxysilane is a specialized organofunctional silane coupling agent with a unique bifunctional structure. This compound is engineered to create robust 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 composite materials 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.
• A key surface modifier and adhesion promoter in epoxy, polyurethane, and acrylic-based coatings for metals, glass, and concrete.
• Used in the formulation of high-performance sealants and adhesives to enhance bond strength and environmental resistance.
• As a sizing agent for glass fibers and mineral fillers to improve their compatibility and dispersion within polymer matrices.
• In the production of moisture-curable resins and as a crosslinking agent in silicone-modified organic polymers.
• For surface treatment of pigments and nanoparticles to prevent agglomeration and improve stability in various media.

Basic Information

Product Name	(Aminoethylaminomethyl)Phenethyltrimethoxysilane
CAS No.	74113-77-2
Molecular Formula	C14H26N2O3Si
Molecular Weight	298.46 g/mol
Synonyms	N-[3-(Trimethoxysilyl)propyl]ethylenediamine; 3-(2-Aminoethylamino)propyltrimethoxysilane; AEAPTMS; Aminoethylaminopropyltrimethoxysilane; Dynasylan® 1411; Silquest® A-1120; N-2-Aminoethyl-3-aminopropyltrimethoxysilane; γ-Aminopropyltrimethoxysilane derivative
EINECS	Contact for details

Quality Control

Our (Aminoethylaminomethyl)Phenethyltrimethoxysilane is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including assay, purity, and identity confirmation, to ensure it meets precise specifications and consistent performance. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance and regulatory needs.

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); containers must be kept tightly sealed to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Clear to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 97.0%
Refractive Index (n20D)	1.440 - 1.445
Density (g/mL, 25°C)	1.010 - 1.030

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