Description

n-[(Triethoxysilyl)Methyl]Butylamine is a bifunctional organosilane coupling agent featuring both an alkoxysilyl group and a primary amine functionality. This dual reactivity makes it a critical component for enhancing adhesion and compatibility between organic polymers and inorganic substrates. It is essential for manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as for producers of advanced composite materials and surface-modified fillers.

Application

• As a coupling agent and adhesion promoter in epoxy, polyurethane, and acrylic-based coatings and adhesives.
• For the surface modification of inorganic fillers (e.g., silica, glass fibers, minerals) to improve dispersion and mechanical properties in polymer composites.
• As a key intermediate in the synthesis of specialized silane-modified polymers (SMP) and hybrid organic-inorganic materials.
• In the formulation of primers and tie-layers to bond plastics, metals, or glass to various substrates.
• For corrosion inhibition in metal surface treatment formulations.
• In the production of moisture-curable systems where the amine group can act as a catalyst or co-reactant.

Basic Information

Product Name	n-[(Triethoxysilyl)Methyl]Butylamine
CAS No.	54729-80-5
Molecular Formula	C11H27NO3Si
Molecular Weight	249.43 g/mol
Synonyms	Butylaminomethyltriethoxysilane; N-Butylaminomethyltriethoxysilane; 3-(Butylaminomethyl)triethoxysilane; (Triethoxysilylmethyl)butylamine; N-(n-Butyl)-3-aminopropyltriethoxysilane (common misnomer, but often searched); Amino silane coupling agent; AMMEO (common trade name series); Dynasylan 1189 (potential trade name); Silane AY 43-031
EINECS	259-357-1

Quality Control

Our production of n-[(Triethoxysilyl)Methyl]Butylamine adheres to a strict quality management system. Each batch is analyzed to ensure high purity and consistent performance. Key parameters including assay, refractive index, and specific gravity are verified. A Certificate of Analysis (COA) documenting these results is provided with every shipment to guarantee compliance with your technical requirements.

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, containers must be kept tightly sealed after opening to prevent degradation by atmospheric moisture.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 97.0%
Refractive Index (n20/D)	1.420 - 1.425
Specific Gravity (20/4°C)	0.920 - 0.935

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