Description

Aminopropylsilane is a bifunctional organosilicon compound featuring a reactive amino group and hydrolyzable alkoxy groups. This unique structure makes it an essential coupling agent and surface modifier, bridging organic polymers with inorganic substrates. It is widely utilized in industries requiring enhanced adhesion, dispersion, and chemical compatibility. Key users include manufacturers of advanced composites, coatings, adhesives, and chromatographic media.

Application

• Silane Coupling Agent: Promotes adhesion between inorganic materials (glass, minerals, metals) and organic polymers (epoxies, phenolics, polyurethanes) in composite materials.
• Surface Modification: Functionalizes silica, alumina, and other fillers to improve dispersion in polymer matrices and reduce viscosity.
• Adhesives & Sealants: Acts as an adhesion promoter and crosslinker, enhancing bond strength and moisture resistance.
• Coatings & Inks: Improves the adhesion of paints, primers, and printing inks to difficult substrates like metals and plastics.
• Chromatography: Used to derivatize silica gel for the preparation of amino-propyl bonded phases in HPLC and solid-phase extraction.
• Fiber Treatment: Sizes and treats glass or carbon fibers to improve interfacial bonding in reinforced plastics.
• Nanomaterial Functionalization: Anchors onto nanoparticles (e.g., silica, quantum dots) to introduce amine groups for further bioconjugation or chemical grafting.
• Pharmaceutical Intermediates: Serves as a key building block in the synthesis of more complex organosilicon molecules for drug delivery systems.

Basic Information

Product Name	Aminopropylsilane
CAS No.	6382-82-7
Molecular Formula	C9H23NO3Si
Molecular Weight	221.37 g/mol
Synonyms	3-Aminopropyltriethoxysilane; APTES; γ-Aminopropyltriethoxysilane; Triethoxy(3-aminopropyl)silane; A 1100; KBE 903; Dynasylan AMEO; Silquest A-1100; 3-Triethoxysilylpropylamine; 3-Aminopropyltriethoxysilane; Aminoethylaminopropyltriethoxysilane (common mixture name)
EINECS	228-994-2

Quality Control

Our Aminopropylsilane is produced under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure consistency and compliance with industry specifications. Key parameters such as purity, amine content, and refractive index are verified. A Certificate of Analysis (COA) detailing the results is available for every shipment to support your quality assurance protocols.

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 maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Amino Value	Contact for details
Refractive Index (n20D)	1.420 - 1.425
Density (g/mL, 25°C)	0.945 - 0.955
Water Content (KF)	≤ 0.5%

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