Description

Dimethoxymethylpropyl-Silane is a versatile organosilicon compound, specifically a functional alkoxysilane, widely used as a coupling agent and surface modifier. Its bifunctional structure allows it to form durable bonds between inorganic materials and organic polymers, significantly enhancing composite performance. This chemical is essential for manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as for producers of advanced silica fillers and mineral reinforcements.

Application

• As a silane coupling agent in mineral-filled composites (e.g., glass fiber, silica, clay) to improve mechanical strength and moisture resistance.
• As a surface treatment agent for inorganic pigments and fillers to enhance dispersion and compatibility in polymer matrices.
• As a key intermediate or adhesion promoter in the formulation of specialty coatings, inks, and adhesives.
• In the synthesis of modified silicones and siloxane polymers with specific functional properties.
• For the hydrophobization of surfaces in construction materials and stone protection.
• As a crosslinking agent or co-monomer in moisture-curable sealants and RTV silicones.

Basic Information

Product Name	Dimethoxymethylpropyl-Silane
CAS No.	18173-73-4
Molecular Formula	C7H18O2Si
Molecular Weight	162.30 g/mol
Synonyms	3-(Dimethoxymethylsilyl)-1-propanol; 3-Hydroxypropyldimethoxymethylsilane; 1-Propanol, 3-(dimethoxymethylsilyl)-; Methyl(dimethoxy)(3-hydroxypropyl)silane; (3-Hydroxypropyl)methyldimethoxysilane; 3-(Methyldimethoxysilyl)-1-propanol; Hydroxypropylmethyldimethoxysilane
EINECS	242-060-2

Quality Control

Our Dimethoxymethylpropyl-Silane is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including gas chromatography (GC) for purity and identity confirmation, to ensure it meets precise specifications and consistent performance for industrial applications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment.

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) and highly volatile; containers must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen) after opening to prevent moisture absorption and degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (20°C)	0.92 - 0.96 g/cm³
Refractive Index (n20D)	1.410 - 1.420

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