Description

3-(Dimethoxymethylsilyl)-n-Methylpropylamine is a bifunctional organosilicon compound featuring both alkoxysilane and secondary amine groups. This unique structure makes it a highly effective coupling agent and adhesion promoter, facilitating strong bonds between inorganic materials and organic polymers. It is essential for manufacturers in the coatings, adhesives, and composites industries seeking to enhance product durability, mechanical strength, and chemical resistance. The compound is also a valuable intermediate in the synthesis of specialized silicone polymers and surface-modifying agents.

Application

• Coupling Agent for Composites: Improves the interfacial adhesion between glass, mineral, or metal fillers and polymer matrices like epoxies, polyurethanes, and phenolics.
• Adhesion Promoter in Coatings & Sealants: Enhances the bonding of paints, inks, and sealants to difficult substrates such as metals, glass, and plastics, providing excellent water and corrosion resistance.
• Surface Modification: Used to treat silica, alumina, and other inorganic particles to improve their dispersion and compatibility in organic systems.
• Intermediate for Silicone Synthesis: Serves as a key building block in the production of amino-functional silicone oils, resins, and surfactants.
• Fiberglass Sizing: Incorporated into sizing formulations for glass fibers to improve their compatibility and bonding with resin systems in reinforced plastics.
• Rubber Reinforcement: Acts as a silane coupling agent in silica-filled rubber compounds (e.g., for tire treads) to reduce rolling resistance and improve wear.

Basic Information

Product Name	3-(Dimethoxymethylsilyl)-n-Methylpropylamine
CAS No.	31024-35-8
Molecular Formula	C7H19NO2Si
Molecular Weight	177.32 g/mol
Synonyms	N-Methyl-3-(dimethoxymethylsilyl)propylamine; N-Methylaminopropyldimethoxymethylsilane; (3-(Methylamino)propyl)dimethoxymethylsilane; Methylaminopropylmethyldimethoxysilane; Methyl[3-(methylamino)propyl]dimethoxysilane; MMDMS; Amino Silane Coupling Agent; AMMO (common industry abbreviation)
EINECS	Contact for details

Quality Control

Our production of 3-(Dimethoxymethylsilyl)-n-Methylpropylamine adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including GC, HPLC, and NMR to verify identity, assay, and impurity profiles. Certificates of Analysis (COA) documenting all critical parameters are provided with every shipment. Our quality system is designed to meet the rigorous demands of industrial and specialty chemical applications.

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). Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen) after opening to prevent hydrolysis and degradation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms
Assay (GC)	≥ 97.0%
Density (at 20°C)	0.90 - 0.92 g/mL
Refractive Index (n20D)	1.420 - 1.425
Water Content (KF)	≤ 0.5%

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