Description

(Trimethoxysilyl)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 creating covalent bonds between organic polymers and inorganic substrates like glass, metals, and minerals. It is essential for manufacturers in the advanced materials sector seeking to enhance adhesion, mechanical properties, and durability in composite systems. Key industries that rely on this specialty silane include electronics, coatings, and high-performance plastics.

Application

• Surface Modification Agent: Used to functionalize silica, glass fibers, and other inorganic fillers to improve their compatibility and dispersion in polymer matrices like epoxies, polyamides, and polyurethanes.
• Adhesion Promoter: Incorporated into primers and coating formulations to dramatically improve adhesion to metallic (e.g., aluminum, steel) and glass surfaces, especially in harsh environments.
• Crosslinking Agent/Intermediate: Serves as a building block in the synthesis of specialized silicones, silane-modified polymers (SMP), and other hybrid organic-inorganic materials.
• Electronics & Semiconductor Industry: Applied as a surface treatment for wafers or as a component in dielectric and passivation layers to enhance performance and reliability.
• Fiber Reinforced Composites: A key sizing agent for glass and carbon fibers to optimize the fiber-matrix interface, resulting in composites with superior strength and fatigue resistance.
• Corrosion-Resistant Coatings: Formulated into anti-corrosion coatings for automotive, aerospace, and marine applications to provide long-term substrate protection.

Basic Information

Product Name	(Trimethoxysilyl)Aniline
CAS No.	34390-22-2
Molecular Formula	C9H15NO3Si
Molecular Weight	213.31 g/mol
Synonyms	Anilinopropyltrimethoxysilane; 3-(Trimethoxysilyl)aniline; N-(3-Trimethoxysilylpropyl)aniline; 3-Anilinopropyltrimethoxysilane; (3-Anilinopropyl)trimethoxysilane; N-Phenylaminopropyltrimethoxysilane; Silane coupling agent KH-? (Aniline type); AMMO (common abbreviation)
EINECS	Contact for details

Quality Control

Our production of (Trimethoxysilyl)Aniline adheres to a strict quality management system to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including assay (by GC or HPLC), identity confirmation (IR, NMR), and control of key impurities. A Certificate of Analysis (COA) detailing all test results is provided with every shipment. We support customer audits and can provide material to meet specific project requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen) after opening to prevent hydrolysis and degradation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Color (APHA)	≤ 50
Refractive Index (n20/D)	1.495 - 1.505
Density (g/mL, 25°C)	1.060 - 1.080

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