Description

Bis(2-Hydroxyethyl)-3-Aminopropyltriethoxysilane is a multifunctional organosilane coupling agent that combines amino and hydroxyl functionalities with hydrolyzable ethoxy groups. This unique structure makes it a critical component for enhancing adhesion, compatibility, and performance in composite materials and surface treatments. It is essential for manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as for producers of advanced composites and mineral-filled plastics seeking to improve interfacial bonding and material durability.

Application

• As a coupling agent and adhesion promoter in epoxy, polyurethane, and acrylic-based coatings and adhesives.
• To improve the bonding and dispersion of inorganic fillers (e.g., silica, glass fibers, minerals) in polymer composites and rubber formulations.
• As a surface modifier for glass, metals, and minerals to enhance hydrophobicity, corrosion resistance, and primer adhesion.
• In the formulation of silane-modified polymers (SMP) and sealants for improved mechanical properties and moisture-cure characteristics.
• As a key intermediate in the synthesis of specialty silicone resins and functionalized materials for textile and fiber treatment.
• For the preparation of aqueous silane systems and cross-linking agents in waterborne industrial applications.

Basic Information

Product Name	Bis(2-Hydroxyethyl)-3-Aminopropyltriethoxysilane
CAS No.	7538-44-5
Molecular Formula	C13H31NO5Si
Molecular Weight	309.48 g/mol
Synonyms	N-[3-(Triethoxysilyl)propyl]diethanolamine; 3-(Diethanolamino)propyltriethoxysilane; Diethanolaminopropyltriethoxysilane; Amino Silane Z-6132; Dynasylan® 1122; Silquest® A-1122; A-1122 Silane; N-(Triethoxysilylpropyl)diethanolamine; 3-(Bis(2-hydroxyethyl)amino)propyltriethoxysilane
EINECS	231-400-4

Quality Control

Our production of Bis(2-Hydroxyethyl)-3-Aminopropyltriethoxysilane adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed against comprehensive specifications, including assay, identity, and impurity profiles. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance and regulatory compliance needs.

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). Keep the container tightly sealed under a dry, inert atmosphere (e.g., nitrogen) to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Refractive Index (n20/D)	1.440 - 1.445
Density (g/mL, 20°C)	1.020 - 1.030
Water Content (KF)	≤ 0.5%

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