Description

n-[3-(Trimethoxysilyl)Propyl]Aniline is a bifunctional organosilane coupling agent featuring both an aromatic amine group and hydrolyzable methoxysilane groups. This unique structure makes it a critical intermediate for imparting adhesion, compatibility, and specific chemical functionality between organic polymers and inorganic substrates. It is essential for manufacturers in advanced materials sectors seeking to enhance the performance and durability of their composite systems. Its primary value lies in creating strong, stable interfaces in demanding industrial applications.

Application

• Silane Coupling Agent: Used to modify surfaces of glass, silica, metals, and other minerals to improve adhesion with epoxy, phenolic, polyurethane, and other resin systems in composite materials.
• Adhesion Promoter: Incorporated into primers, sealants, adhesives, and coatings to enhance bonding to difficult substrates and improve long-term durability under humid or wet conditions.
• Surface Treatment: Applied as a sizing or finishing agent for glass fibers, carbon fibers, and mineral fillers to optimize their performance in reinforced plastics (FRP).
• Polymer Modification: Acts as a monomer or cross-linking agent in the synthesis of specialty silicones, polyimides, and other high-performance polymers, introducing aromatic amine functionality.
• Intermediate for Further Synthesis: Serves as a key building block in pharmaceutical, agrochemical, and dye industries for creating more complex molecules due to its reactive aniline and silane groups.

Basic Information

Product Name	n-[3-(Trimethoxysilyl)Propyl]Aniline
CAS No.	3068-76-6
Molecular Formula	C12H21NO3Si
Molecular Weight	255.39 g/mol
Synonyms	3-Anilinopropyltrimethoxysilane; N-Phenyl-3-aminopropyltrimethoxysilane; Anilinopropyltrimethoxysilane; (3-Anilinopropyl)trimethoxysilane; γ-Anilinopropyltrimethoxysilane; N-(3-Trimethoxysilylpropyl)aniline; A0700 (common silane code); Silane coupling agent KH-? (industry variant)
EINECS	221-302-5

Quality Control

Our production of n-[3-(Trimethoxysilyl)Propyl]Aniline adheres to a stringent quality management system. Every batch undergoes rigorous analytical testing, including GC, HPLC, and NMR, to ensure high purity and consistent performance. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing assay, identity, and impurity profiles. Our quality commitment supports compliance with relevant global chemical management frameworks.

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. Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Refractive Index (n20D)	1.495 - 1.505
Density (g/mL, 20°C)	1.060 - 1.080

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