Description

3-[3-(Trimethoxysilyl)Propoxy]Benzenamine is a specialized organosilane coupling agent featuring both an aromatic amine functional group and hydrolyzable methoxysilyl groups. This dual functionality makes it a critical intermediate for creating covalent bonds between organic polymers and inorganic substrates like glass, metals, and minerals. It is essential for formulators and manufacturers in the advanced materials sector seeking to enhance composite material performance, adhesion, and surface modification. The compound is supplied under strict quality control to ensure batch-to-batch consistency for demanding industrial applications.

Application

• Surface Modification Agent: Primarily used to functionalize glass fibers, silica, and other mineral fillers to improve their compatibility and bonding with epoxy, polyurethane, and other polymer matrices in composite materials.
• Adhesion Promoter: Incorporated into primers, coatings, and adhesives (especially for metals and glass) to significantly improve wet and dry adhesion strength and long-term durability.
• Crosslinking Agent & Intermediate: Serves as a key building block in the synthesis of more complex silane derivatives, dendrimers, and specialty polymers requiring aromatic amine functionality.
• Filler Treatment for Composites: Enhances the mechanical properties (tensile strength, impact resistance) and dispersion of fillers in engineering plastics and rubber compounds.
• Waterborne System Modifier: Used to improve the corrosion resistance and adhesion of water-based coatings and treatments on metallic surfaces.
• Silylating Agent: Employed in organic synthesis to introduce silyl-protected amine groups onto molecules.

Basic Information

Item	Details
Product Name	3-[3-(Trimethoxysilyl)Propoxy]Benzenamine
CAS No.	71550-66-8
Molecular Formula	C12H21NO4Si
Molecular Weight	271.39 g/mol
Synonyms	N-[3-(Trimethoxysilyl)propoxy]aniline; 3-Aminophenyl 3-(trimethoxysilyl)propyl ether; (3-Aminophenoxy)propyltrimethoxysilane; γ-Anilinopropyltrimethoxysilane; Aromatic aminosilane; Silane coupling agent, amine-functional; APTES derivative (aromatic); A-0700 (common trade designation)
EINECS	Contact for details

Quality Control

Every batch of 3-[3-(Trimethoxysilyl)Propoxy]Benzenamine is manufactured and tested under a strict quality management system. We ensure the product meets high-purity standards suitable for industrial and R&D applications. Certificates of Analysis (COA) documenting key parameters such as purity, identity, and moisture content are provided with each shipment and are available upon request.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen) after opening to prevent hydrolysis and maintain product integrity.

Specification

Item	Specification
Appearance	Clear to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC or HPLC)	≥ 97.0%
Water Content (Karl Fischer)	≤ 0.5%
Refractive Index (n20D)	1.480 - 1.490
Density (20°C)	1.08 - 1.12 g/cm³

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