Description

N,n-Diethyl-3-Triethoxysilylpropan-1-Amine is a versatile organosilane coupling agent that combines an amine functionality with hydrolyzable ethoxysilyl groups. This dual functionality 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, and sealants industries seeking to improve product durability and performance. This compound is supplied under CAS No. 10049-42-0.

Application

• As a coupling agent and adhesion promoter in epoxy, polyurethane, and acrylic-based coatings and adhesives.
• As a surface modifier for silica, glass fibers, and minerals to improve dispersion and bonding in composite materials.
• As a key intermediate in the synthesis of specialized silane-modified polymers (SMP) and resins.
• For the hydrophobic treatment of surfaces in construction and protective coatings.
• As a corrosion inhibitor and primer component in metal surface treatment formulations.
• In the manufacture of moisture-curable sealants and RTV silicones.

Basic Information

Product Name	N,n-Diethyl-3-Triethoxysilylpropan-1-Amine
CAS No.	10049-42-0
Molecular Formula	C13H31NO3Si
Molecular Weight	277.48 g/mol
Synonyms	3-(Diethylamino)propyltriethoxysilane; Diethylaminopropyltriethoxysilane; N-(3-Triethoxysilylpropyl)diethylamine; Dynasylan® 1122; Silquest® A-2120; Aminoethylaminopropyltriethoxysilane (common misnomer); DEAPTES; 3-(N,N-Diethylamino)propyltriethoxysilane
EINECS	233-170-0

Quality Control

Our production of N,n-Diethyl-3-Triethoxysilylpropan-1-Amine adheres to strict quality management protocols. Every batch undergoes rigorous analytical testing, including GC and titration methods, to ensure consistent purity and performance. Certificates of Analysis (COA) documenting key specifications are available for all shipments 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). 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
Density (g/mL, 25°C)	0.920 - 0.935

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