Description

n-(2-Aminoethyl)-3-Aminoisobutylmethyldimethoxysilane is a bifunctional organosilane coupling agent featuring both primary amino and methoxysilane groups. This dual functionality is critical for creating strong, durable bonds between inorganic materials and organic polymers, enhancing composite performance. 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 improved mechanical properties and adhesion.

Application

• As a coupling agent and adhesion promoter in epoxy, polyurethane, and acrylic-based coatings and adhesives.
• Surface treatment for glass fibers, minerals (like silica, talc), and metals to improve bonding with polymer matrices in composites.
• Modifier for silica and other fillers in silicone rubber and other elastomers to enhance reinforcement and processing.
• Primer or additive for improving the adhesion of sealants and paints to difficult substrates like aluminum, glass, and galvanized steel.
• Intermediate in the synthesis of more complex silane derivatives and specialty polymers.
• Potential use in waterborne systems where its amino group can facilitate dispersion and stability.

Basic Information

Product Name	n-(2-Aminoethyl)-3-Aminoisobutylmethyldimethoxysilane
CAS No.	23410-40-4
Molecular Formula	C9H24N2O2Si
Molecular Weight	220.39 g/mol
Synonyms	3-(2-Aminoethylamino)isobutylmethyldimethoxysilane; N-[2-(3-Trimethoxysilylpropylamino)ethyl]propane-1,3-diamine (related); Aminoethylaminopropylmethyldimethoxysilane (common industry name); Amino-functional silane coupling agent; Dynasylan® 1411 (potential trade name); Silane A-2120 (potential trade name); (Methyldimethoxysilylmethyl)-2-aminoethylamine; 2-(2-Aminoethylamino)-4-methylpentylmethyldimethoxysilane
EINECS	Contact for details

Quality Control

Our n-(2-Aminoethyl)-3-Aminoisobutylmethyldimethoxysilane is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure consistency, purity, and performance. Certificates of Analysis (COA) detailing key parameters such as assay, identity, and moisture content are provided and available upon request to support your quality assurance protocols.

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). Keep the container tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent hydrolysis and maintain product integrity. Keep away from heat and incompatible materials such as strong acids and oxidizing agents.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC or Titration)	≥ 97.0%
Density (at 20°C)	~0.97 g/mL
Refractive Index (n20D)	~1.445
Moisture (Karl Fischer)	≤ 0.5%

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