Description

(N,n-Dimethyl-3-Aminopropyl)Trimethoxysilane is a bifunctional organosilane coupling agent featuring both a reactive amino group and hydrolyzable methoxysilyl groups. This dual functionality makes it a critical component for enhancing adhesion and compatibility between organic polymers and inorganic substrates. It is essential for manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as in advanced composite materials and surface modification technologies.

Application

• As a coupling agent and adhesion promoter in epoxy, polyurethane, and acrylic-based coatings and adhesives.
• For the surface treatment of mineral fillers (e.g., silica, glass fibers) to improve dispersion and interfacial bonding in polymer composites.
• As a key intermediate in the synthesis of specialized silane-modified polymers (SMP) and resins for high-performance sealants.
• In the formulation of primers and tie-layers to promote adhesion on difficult-to-bond substrates like metals, glass, and plastics.
• For corrosion inhibition in metal surface treatment formulations.
• As a modifying agent in waterborne systems to improve stability and performance.

Basic Information

Product Name	(N,n-Dimethyl-3-Aminopropyl)Trimethoxysilane
CAS No.	35141-35-6
Molecular Formula	C8H21NO3Si
Molecular Weight	207.35 g/mol
Synonyms	3-(Dimethylamino)propyltrimethoxysilane; N,N-Dimethyl-3-aminopropyltrimethoxysilane; DMAPTMOS; (3-(Dimethylamino)propyl)trimethoxysilane; Amino silane A-1112 (trade name equivalent); Dynasylan 1112 (trade name equivalent); Silquest A-1112 (trade name equivalent); γ-(Dimethylaminopropyl)trimethoxysilane
EINECS	Contact for details

Quality Control

Our production of (N,n-Dimethyl-3-Aminopropyl)Trimethoxysilane adheres to stringent quality management protocols. Every batch is analyzed using advanced techniques like GC, HPLC, and NMR to ensure consistent purity and performance. A comprehensive Certificate of Analysis (COA) detailing assay, identity, and impurity profiles is provided with each shipment to guarantee 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 contact with atmospheric moisture, which can lead to hydrolysis and polymerization.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Refractive Index (n20/D)	1.422 - 1.428
Density (20°C)	0.945 - 0.955 g/mL

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