Description

(N,n-Diethylaminomethyl)Trimethoxysilane, 95% CAS NO 67475-66-5 is a versatile organosilicon coupling agent featuring both alkoxysilane and tertiary amine functional groups. This dual functionality makes it a critical component for modifying surfaces and enhancing adhesion between inorganic materials and organic polymers. It is primarily utilized by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as in advanced composite materials and foundry resins, where improved bonding and moisture resistance are essential.

Application

• As a coupling agent and adhesion promoter in epoxy, polyurethane, and acrylic-based coatings and adhesives.
• Surface modification of mineral fillers (e.g., silica, glass fibers) to improve dispersion and compatibility in polymer matrices.
• Key intermediate in the synthesis of specialty silicone polymers and modified silanes for various industrial applications.
• Enhancing the mechanical properties and water resistance of fiber-reinforced composites and molding compounds.
• Used in foundry sand binders to improve core strength and casting quality.
• Potential applications in controlled-release systems and as a catalyst component due to its amine functionality.

Basic Information

Product Name	(N,n-Diethylaminomethyl)Trimethoxysilane, 95%
CAS No.	67475-66-5
Molecular Formula	C9H23NO3Si
Molecular Weight	221.37 g/mol
Synonyms	N-(Diethylaminomethyl)trimethoxysilane; Diethylaminomethyltrimethoxysilane; (Diethylaminomethyl)trimethoxysilane; 3-(Diethylamino)propyltrimethoxysilane (related isomer); N-[(Trimethoxysilyl)methyl]-N-ethyl-ethanamine; Amino silane coupling agent; AMMO (common industry abbreviation for aminopropyl silanes, related class); Dow Corning Z-6011 (related commercial product identifier)
EINECS	Contact for details

Quality Control

Our (N,n-Diethylaminomethyl)Trimethoxysilane is produced under stringent quality management systems. Every batch undergoes rigorous analytical testing, including assay by GC or titration and impurity profiling, to ensure it meets the declared 95% minimum purity specification and consistent performance. Certificates of Analysis (COA) detailing all relevant parameters are available upon request to support your quality assurance and regulatory needs.

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 under a dry inert atmosphere (e.g., nitrogen) after opening to prevent hydrolysis and maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 95.0%
Density (at 20°C)	~0.95 g/mL
Refractive Index (n20D)	~1.415

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