Description

2-(3-Trimethoxysilylpropyl)Guanidine is a bifunctional organosilane coupling agent that combines a reactive guanidine group with a hydrolyzable trimethoxysilyl group. This unique structure makes it a powerful intermediate for creating durable chemical bonds between inorganic substrates and organic polymers. It is particularly valuable for industries requiring enhanced adhesion, surface modification, and the creation of functional hybrid materials. Key sectors that utilize this specialty chemical include advanced composites, coatings, adhesives, and sealants.

Application

• Adhesion Promoter: Enhances the bond strength between glass, metal, or mineral surfaces and polymer matrices in composites and coatings.
• Surface Modification Agent: Used to functionalize silica, glass fibers, and other fillers to improve compatibility and dispersion in rubber and plastic compounds.
• Crosslinking Agent: Serves as a co-agent in peroxide-cured elastomer systems to improve crosslink density and thermal stability.
• Primer Formulation: A key component in primers for sealants and adhesives, especially for automotive and construction applications.
• Antimicrobial Finishes: The guanidine moiety provides a basis for developing durable antimicrobial surface treatments for textiles and plastics.
• Resin Modification: Incorporated into epoxy, phenolic, or other resin systems to improve mechanical properties and chemical resistance.

Basic Information

Product Name	2-(3-Trimethoxysilylpropyl)Guanidine
CAS No.	128310-21-4
Molecular Formula	C7H19N3O3Si
Molecular Weight	221.33 g/mol
Synonyms	N-(3-(Trimethoxysilyl)propyl)guanidine; 3-(Trimethoxysilyl)propylguanidine; Guanidine, N-[3-(trimethoxysilyl)propyl]-; Dynasylan® 1124; Silane A-1124; SCA-G1; (3-Trimethoxysilylpropyl)guanidine; γ-Guanidinopropyltrimethoxysilane
EINECS	Contact for details

Quality Control

Our production of 2-(3-Trimethoxysilylpropyl)Guanidine adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including assay by titration, purity verification via gas chromatography (GC), and identity confirmation by infrared spectroscopy (IR) to ensure consistency and performance. A Certificate of Analysis (COA) detailing all specifications is provided with each shipment to guarantee traceability and 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). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 95.0%
Refractive Index (n20/D)	1.430 - 1.440
Density (20°C)	1.05 - 1.15 g/cm³

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