Description

Isobutyldimethoxymethylsilane is a highly versatile organosilicon compound, specifically an alkoxysilane, valued for its role as a key chemical intermediate and surface modifying agent. Its primary commercial significance lies in its ability to introduce hydrophobic and organofunctional properties to inorganic substrates, enhancing material performance. This product is essential for manufacturers in the silicone polymers, coatings, adhesives, and sealants industries, where it serves as a crosslinker, adhesion promoter, and moisture scavenger.

Application

• Silicone Resin & Polymer Modification: Acts as a crosslinking agent and chain extender in the synthesis of specialty silicone resins and room-temperature-vulcanizing (RTV) silicone rubbers.
• Surface Treatment & Primers: Used as an adhesion promoter and coupling agent in coatings, paints, and primers for metals, glass, and minerals to improve wetting, durability, and corrosion resistance.
• Moisture Scavenger: Employed in polyurethane and other moisture-sensitive systems to prevent gelation and extend pot life by reacting with trace water.
• Silane Coupling Agent: Enhances the interfacial bonding between organic polymers and inorganic fillers (like silica, glass fibers) in composite materials, improving mechanical properties.
• Hydrophobic Agent: Imparts water-repellent characteristics to construction materials, textiles, and stone.
• Pharmaceutical & Agrochemical Intermediates: Serves as a protected silane reagent in the synthesis of more complex organosilicon molecules for advanced applications.

Basic Information

Product Name	Isobutyldimethoxymethylsilane
CAS No.	18293-82-8
Molecular Formula	C7H18O2Si
Molecular Weight	162.30 g/mol
Synonyms	Methyldimethoxy(isobutyl)silane; Isobutyl(methyl)dimethoxysilane; Dimethoxy(isobutyl)methylsilane; (Isobutyl)methyldimethoxysilane; Silane, dimethoxyisobutylmethyl-; NSC 163067; Isobutylmethyl dimethoxysilane
EINECS	Contact for details

Quality Control

Our Isobutyldimethoxymethylsilane is produced under stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including Gas Chromatography (GC) for purity and identity confirmation, to ensure it meets precise specifications. Certificates of Analysis (COA) documenting batch-specific results are available upon request, providing full traceability and quality assurance for your production processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources and open flame. Due to its highly volatile and moisture-sensitive nature, the container should be kept tightly sealed under a dry, inert atmosphere (e.g., nitrogen) after opening to maintain product integrity. Recommended storage temperature: 2-25°C.

Specification

Item	Specification
Appearance	Colorless clear liquid
Identification (IR)	Conforms
Purity (GC)	≥ 98.0%
Refractive Index (n20D)	1.395 - 1.405
Density (20°C)	0.86 - 0.90 g/mL
Water Content (KF)	≤ 0.1%

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