Description

4-Amino-3,3-Dimethylbutyltrimethoxysilane is a specialized bifunctional organosilane coupling agent featuring both a reactive amino group and hydrolyzable methoxysilyl groups. This unique structure makes it a critical component for enhancing adhesion, compatibility, and performance in composite materials and surface modification technologies. 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, adhesives, and sealants.
• Surface treatment of mineral fillers (e.g., silica, glass fibers, clay) to improve dispersion and interfacial bonding in polymer composites.
• Modification of glass or mineral surfaces to provide amino-functional sites for further chemical grafting or improved paint adhesion.
• Key intermediate in the synthesis of more complex silane-based specialty chemicals and functional polymers.
• Used in tire and rubber compounding to enhance filler-rubber interaction and reinforce mechanical properties.
• Potential applications in waterborne systems and as a crosslinking agent due to its amino functionality.

Basic Information

Product Name	4-Amino-3,3-Dimethylbutyltrimethoxysilane
CAS No.	157923-74-5
Molecular Formula	C9H23NO3Si
Molecular Weight	221.37 g/mol
Synonyms	N-(3-(Trimethoxysilyl)-2,2-dimethylpropyl)amine; 3-(Trimethoxysilyl)-2,2-dimethylpropylamine; (3-Amino-2,2-dimethylpropyl)trimethoxysilane; Amino-functional silane; AMMO; Dynasylan 1122; Silquest A-Link 15; Amino propyl silane derivative
EINECS	Contact for details

Quality Control

Our production of 4-Amino-3,3-Dimethylbutyltrimethoxysilane adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including assay, purity, and identity confirmation, to ensure it meets precise customer specifications and industry standards. A Certificate of Analysis (COA) detailing all relevant parameters is provided with each shipment and is available upon request.

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 hydrolysis and degradation upon contact with atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms
Assay (GC or Titration)	≥ 97.0%
Density (at 20°C)	~0.95 g/mL
Refractive Index (n20D)	~1.420

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