Description

3-Aminopropyl-Methyl-Diethoxysilane is a bifunctional organosilicon compound featuring both an amino group and hydrolyzable ethoxy groups. This unique structure makes it a highly effective coupling agent and surface modifier, bridging organic polymers with inorganic materials. It is essential for manufacturers in the adhesives, sealants, coatings, and composites industries seeking to enhance material compatibility, adhesion, and mechanical properties.

Application

• As a coupling agent in mineral-filled composites (e.g., glass fiber, silica) to improve interfacial adhesion and mechanical strength.
• As a surface modifier for nanoparticles and fillers to improve dispersion in polymer matrices.
• In the formulation of adhesives and sealants to promote bonding to difficult substrates like glass, metals, and masonry.
• As a key intermediate in the synthesis of specialized silane polymers and resins for coatings and release agents.
• For the priming of surfaces prior to coating or bonding applications to ensure long-lasting performance.
• In the production of amino-functional silicone oils and emulsions used as softeners and modifiers in textiles and personal care.

Basic Information

Product Name	3-Aminopropyl-Methyl-Diethoxysilane
CAS No.	3179-76-8
Molecular Formula	C8H21NO2Si
Molecular Weight	191.35 g/mol
Synonyms	N-(3-(Triethoxysilyl)propyl)amine; (3-Aminopropyl)methyldiethoxysilane; Methyl[3-(triethoxysilyl)propyl]amine; 3-(Triethoxysilyl)-1-propanamine; Dynasylan 1505; Silquest A-1102 (related amino silane); Amino-functional silane; AMDES; γ-Aminopropylmethyldiethoxysilane
EINECS	221-660-8

Quality Control

Our 3-Aminopropyl-Methyl-Diethoxysilane is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including assay and impurity profiling, to ensure it meets precise specifications and industry standards. A comprehensive Certificate of Analysis (COA) documenting purity, identity, and key physical properties is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent contact with atmospheric moisture, which can lead to hydrolysis and polymerization.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms
Assay (GC)	≥ 97.0%
Refractive Index (n20/D)	1.420 - 1.425
Density (20°C)	0.92 - 0.96 g/mL

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