Description

3-(Carbomethoxy)Propyldimethylmethoxysilane is a bifunctional organosilicon compound featuring both a methoxysilane and a carbomethoxy (methyl ester) group. This unique structure makes it a versatile coupling agent and surface modifier, crucial for enhancing adhesion and compatibility between organic polymers and inorganic substrates. It is essential for manufacturers in the silicone rubber, adhesive, sealant, and composite materials industries seeking to improve product performance and durability.

Application

• As a coupling agent in mineral-filled composites (e.g., silica, clay) to improve filler dispersion and mechanical properties.
• As a surface treatment agent for glass fibers, minerals, and metals to enhance bonding with polymer matrices.
• As a key intermediate in the synthesis of specialized silicone polymers and resins with tailored properties.
• In the formulation of high-performance sealants and adhesives to promote adhesion to difficult substrates.
• For modifying crosslinking density and network structure in silicone elastomers.
• As a hydrolysis-stable silane in moisture-cure systems.

Basic Information

Product Name	3-(Carbomethoxy)Propyldimethylmethoxysilane
CAS No.	204641-79-2
Molecular Formula	C8H18O3Si
Molecular Weight	190.31 g/mol
Synonyms	Methyl 3-(dimethylmethoxysilyl)propanoate; Dimethylmethoxy[3-(methoxycarbonyl)propyl]silane; (3-Carbomethoxypropyl)dimethylmethoxysilane; 3-(Methoxycarbonyl)propyldimethylmethoxysilane; Methoxy[3-(methoxycarbonyl)propyl]dimethylsilane; Silane, dimethylmethoxy[3-(methoxycarbonyl)propyl]-; γ-Methoxycarbonylpropyldimethylmethoxysilane
EINECS	Contact for details

Quality Control

Our 3-(Carbomethoxy)Propyldimethylmethoxysilane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including GC and NMR, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing identity, assay, and impurity profiles are available upon request to support your quality assurance protocols.

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 maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (20°C)	0.95 - 0.98 g/mL
Refractive Index (n20D)	1.420 - 1.425

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