Description

n-[3-(Triethoxysilyl)Propyl]-β-Alanine is a bifunctional organosilane coupling agent that combines a reactive triethoxysilane group with a β-alanine moiety. This unique structure is critical for creating stable covalent bonds between inorganic substrates and organic polymers, significantly enhancing composite material performance. It is essential for manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as advanced material science, seeking to improve adhesion, mechanical strength, and durability.

Application

• Surface Modification Agent: Used to functionalize glass, silica, metals, and other inorganic fillers to improve compatibility and dispersion within polymer matrices like epoxies, polyurethanes, and acrylics.
• Adhesion Promoter: Enhances the bond strength and wet adhesion of coatings, inks, and adhesives to difficult-to-bond substrates, including metals and treated plastics.
• Crosslinking Agent & Coupler: Acts as a molecular bridge in silicone-modified polymers and hybrid organic-inorganic composites, improving thermal stability and mechanical properties.
• Fiber Treatment: Applied to glass or mineral fibers in reinforced plastics (e.g., FRP) to optimize the fiber-matrix interface, reducing voids and increasing composite strength.
• Dental & Biomedical Composites: Utilized to treat fillers in dental restorative materials and biocompatible composites to ensure strong integration and longevity.
• Nanomaterial Functionalization: Key for surface modification of nanoparticles (e.g., silica, titania) to prevent aggregation and enable their incorporation into specialized polymeric systems.

Basic Information

Product Name	n-[3-(Triethoxysilyl)Propyl]-β-Alanine
CAS No.	67674-57-1
Molecular Formula	C14H31NO5Si
Molecular Weight	321.49 g/mol
Synonyms	3-(Triethoxysilyl)propyl-β-alanine; β-Alanine, N-[3-(triethoxysilyl)propyl]-; N-(3-Triethoxysilylpropyl)-β-alanine; Silane AY 43-031; Silquest A-1112 (Momentive); Dynasylan 1189 (Evonik); Aminoethylaminopropyltriethoxysilane (β-alanine derivative); 3-(Triethoxysilyl)-1-propanamine, N-2-carboxyethyl-
EINECS	Contact for details

Quality Control

Our n-[3-(Triethoxysilyl)Propyl]-β-Alanine is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including assay (by titration or NMR), identity confirmation (IR), and purity checks, to ensure consistency and performance. Certificates of Analysis (COA) detailing all specifications are 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, well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent hydrolysis and degradation upon exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Clear to slightly yellow liquid
Identification (IR)	Conforms to structure
Assay (Titration)	≥ 95.0%
Refractive Index (n20D)	1.420 - 1.430
Density (20°C)	1.00 - 1.05 g/cm³
Moisture (KF)	≤ 0.5%

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