Description

n-Butyldimethylmethoxysilane is a versatile organosilicon compound, specifically a methoxysilane derivative, that serves as a key intermediate and functionalizing agent in advanced material synthesis. Its primary value lies in its ability to introduce hydrophobic, crosslinkable, or surface-modifying properties to a wide range of substrates and polymers. This chemical is essential for manufacturers and R&D teams in the silicone, coatings, and electronics industries seeking to enhance product performance through tailored surface chemistry and controlled reactivity.

Application

• Silicone Resin & Polymer Modification: Acts as a chain extender, crosslinking agent, or endblocker in the synthesis of specialty silicone polymers, influencing elasticity, hydrophobicity, and thermal stability.
• Surface Treatment & Coupling Agent: Used to functionalize inorganic fillers (e.g., silica, glass) and surfaces to improve compatibility and adhesion with organic matrices in composite materials and coatings.
• Hydrophobic Coatings: A key precursor for formulating water-repellent and anti-corrosion coatings for construction materials, textiles, and electronic components.
• Adhesive & Sealant Formulations: Imparts moisture-curing properties and enhances adhesion to various substrates in high-performance sealants and adhesives.
• Pharmaceutical & Agro-chemical Intermediates: Serves as a protected silane reagent in the synthesis of more complex molecules for active ingredient development.
• Electronics & Semiconductor Precursors: Utilized in chemical vapor deposition (CVD) or as a surface passivation agent in microelectronics fabrication.

Basic Information

Product Name	n-Butyldimethylmethoxysilane
CAS No.	64712-50-1
Molecular Formula	C7H18OSi
Molecular Weight	146.30 g/mol
Synonyms	Butyldimethylmethoxysilane; n-Butyl(dimethyl)methoxysilane; Dimethylbutylmethoxysilane; Methoxybutyldimethylsilane; 1-Butyldimethylmethoxysilane; Butyl(dimethyl)methoxysilane; (Butyl)(dimethyl)methoxysilane; Methoxy(dimethyl)butylsilane
EINECS	Contact for details

Quality Control

Our n-Butyldimethylmethoxysilane is manufactured under stringent quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including Gas Chromatography (GC) for assay and impurity profiling, to meet exacting customer specifications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment, ensuring full traceability and compliance with 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). Due to its hygroscopic and highly volatile nature, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent moisture absorption and degradation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Density (20°C)	0.80 - 0.82 g/mL
Refractive Index (n20/D)	1.405 - 1.410
Water Content (KF)	≤ 0.1%

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