Description

3-(3-Aminophenoxy)Propyltrimethoxysilane is a bifunctional organosilane coupling agent featuring both an aromatic amine group and hydrolyzable methoxysilyl groups. This unique molecular structure makes it a critical component for enhancing adhesion and compatibility between inorganic materials and organic polymers. It is essential for manufacturers in the composites, coatings, and electronics industries seeking to improve the mechanical properties and durability of their products.

Application

• As a coupling agent and adhesion promoter in epoxy, polyurethane, and phenolic resin-based composites and coatings.
• Surface treatment for glass fibers, minerals, and metal oxides to improve bonding with polymer matrices.
• Key intermediate in the synthesis of specialized silicone polymers and resins with enhanced thermal and mechanical properties.
• Modifier for silica and other fillers in rubber compounding to reduce viscosity and improve reinforcement.
• Primer or additive in sealant and adhesive formulations to improve wetting and long-term bond strength.
• Surface functionalization agent for nanoparticles and advanced materials in electronic applications.

Basic Information

Product Name	3-(3-Aminophenoxy)Propyltrimethoxysilane
CAS No.	55648-29-8
Molecular Formula	C12H21NO4Si
Molecular Weight	271.39 g/mol
Synonyms	3-(3-Aminophenoxy)propyltrimethoxysilane; (3-(3-Aminophenoxy)propyl)trimethoxysilane; m-Aminophenoxypropyltrimethoxysilane; 3-Aminophenoxypropyltrimethoxysilane; APTMS (aminophenoxy variant); Silane coupling agent KBM-573; γ-(m-Aminophenoxy)propyltrimethoxysilane; N-[3-(Trimethoxysilyl)propyl]-m-aminophenol
EINECS	Contact for details

Quality Control

Our production of 3-(3-Aminophenoxy)Propyltrimethoxysilane adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed against comprehensive specifications using advanced techniques like GC, HPLC, and NMR. A Certificate of Analysis (COA) detailing purity, identity, and key physical properties is provided with every shipment to support your quality assurance processes.

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); containers must be kept tightly sealed to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Clear to pale yellow liquid
Identification (IR)	Conforms
Purity (GC)	≥ 97.0%
Refractive Index (n20/D)	1.490 - 1.500
Density (g/mL, 25°C)	1.070 - 1.090

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