Description

3,3-Dimethylbutyl Methyl Dichlorosilane is a specialized organosilicon compound that serves as a crucial building block in advanced material synthesis. Its unique structure, featuring both a bulky tert-butyl-derived group and reactive chlorosilane functionalities, makes it an invaluable precursor for introducing hydrophobic and sterically hindered properties into siloxane polymers and surfaces. This chemical is primarily sought by R&D and production teams in the silicone, specialty polymer, and surface modification industries for creating tailored materials with enhanced performance characteristics.

Application

• Silicone Intermediate: A key monomer for the synthesis of custom polysiloxanes and silicone resins with specific branching and hydrophobic character.
• Surface Modification Agent: Used to functionalize inorganic surfaces (e.g., silica, glass) to impart permanent hydrophobicity and organic compatibility.
• Adhesion Promoter: Acts as a coupling agent in composite materials to improve the bond between organic polymers and inorganic fillers.
• Pharmaceutical & Agrochemical Intermediates: Serves as a protected synthon in the multi-step synthesis of active ingredients requiring silicon-containing moieties.
• Hydrophobic Coatings: A precursor in the formulation of water-repellent and anti-fouling coatings for textiles, electronics, and construction materials.
• Research & Development: Employed in academic and industrial labs for developing novel organosilicon compounds with tailored physical and chemical properties.

Basic Information

Product Name	3,3-Dimethylbutyl Methyl Dichlorosilane
CAS No.	157223-34-2
Molecular Formula	C7H16Cl2Si
Molecular Weight	199.19 g/mol
Synonyms	Methyl(3,3-dimethylbutyl)dichlorosilane; Dichloro(methyl)(3,3-dimethylbutyl)silane; (3,3-Dimethylbutyl)methyldichlorosilane; Neohexylmethyldichlorosilane; tert-Butylethylmethyldichlorosilane; Silane, dichloro(3,3-dimethylbutyl)methyl-; 1,1-Dimethylpropylmethyldichlorosilane (common naming variation)
EINECS	Contact for details

Quality Control

Our production of 3,3-Dimethylbutyl Methyl Dichlorosilane adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analysis, including assay by GC or titration, identity confirmation (IR), and impurity profiling. A Certificate of Analysis (COA) detailing all test results is provided with every shipment, ensuring full traceability and compliance with your material specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and reacts vigorously with water, alcohols, and bases. Keep the container tightly sealed under an inert atmosphere (nitrogen or argon) to prevent degradation. Isolate from oxidizing agents and incompatible materials.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 97.0%
Density (at 20°C)	~1.00 g/mL
Refractive Index (n20/D)	~1.435
Water Content (Karl Fischer)	≤ 0.1%

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