Description

3-(3-Aminophenoxy)Trimethoxysilane is a specialized organosilicon coupling agent featuring both an aromatic amine and hydrolyzable methoxysilyl groups. This unique bifunctional structure makes it a critical intermediate for creating durable chemical bridges between inorganic substrates and organic polymers. It is essential for manufacturers in advanced materials sectors seeking to enhance adhesion, mechanical strength, and thermal stability in composite systems. The compound is supplied under strict quality control to ensure batch-to-batch consistency for demanding industrial applications.

Application

• Surface Modification Agent: Used to functionalize glass, silica, metals, and other inorganic surfaces to improve compatibility with organic resins and coatings.
• Adhesion Promoter: Enhances the bond strength and durability of epoxy, polyimide, and other high-performance adhesives and sealants, particularly in challenging environments.
• Polymer & Composite Crosslinker: Serves as a key monomer or crosslinking agent in the synthesis of silane-modified polymers, hybrid organic-inorganic composites, and high-temperature resins.
• Fiber Sizing & Treatment: Applied as a coupling agent on carbon, aramid, or glass fibers to optimize the interfacial adhesion and stress transfer in reinforced plastic composites.
• Electronic Encapsulants & Underfills: Incorporated into formulations for semiconductor packaging to improve moisture resistance, reduce stress, and enhance reliability.
• Specialty Coating Additive: Improves the adhesion, corrosion resistance, and weatherability of primers, anti-corrosion coatings, and functional finishes.

Basic Information

Product Name	3-(3-Aminophenoxy)Trimethoxysilane
CAS No.	872277-48-0
Molecular Formula	C12H21NO4Si
Molecular Weight	271.39 g/mol
Synonyms	3-(3-Aminophenoxy)propyltrimethoxysilane; m-Aminophenoxypropyltrimethoxysilane; 3-Aminophenyloxypropyltrimethoxysilane; (3-(3-Aminophenoxy)propyl)trimethoxysilane; APTMS (aminophenoxy variant); Silane coupling agent KH-? (aminophenoxy type); Amino phenoxy trimethoxy silane; γ-(m-Aminophenoxy)propyltrimethoxysilane
EINECS	Contact for details

Quality Control

Our 3-(3-Aminophenoxy)Trimethoxysilane is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including chromatography (HPLC, GC) and spectroscopic methods (IR, NMR), to verify identity, purity, and the absence of critical impurities. A Certificate of Analysis (COA) detailing all test results is provided with each shipment to ensure full traceability and compliance with your material specifications.

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 material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed and under a dry inert atmosphere (e.g., nitrogen) after opening to prevent hydrolysis and degradation. Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	Clear to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC/GC)	≥ 97.0%
Color (APHA)	≤ 100
Refractive Index (n20D)	1.480 - 1.490
Density (g/mL, 20°C)	1.08 - 1.12
Water Content (KF)	≤ 0.5%

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