Description

Chlorodimethylisobutylsilane is a versatile organosilicon compound, specifically a chlorosilane, that serves as a crucial intermediate in the synthesis of more complex silanes and silicone polymers. Its primary value lies in its ability to introduce the isobutyl-dimethylsilyl protecting group in organic synthesis and to act as a key building block for specialty silicone fluids, resins, and surface modifiers. This chemical is essential for manufacturers and R&D laboratories in the pharmaceutical, agrochemical, and advanced materials sectors who require high-purity intermediates for precise chemical modifications.

Application

• Silylating Agent: Used as a protecting group for alcohols and other sensitive functional groups in multi-step organic synthesis, particularly in pharmaceutical intermediate production.
• Silicone Intermediate: Serves as a fundamental monomer or cross-linking agent in the manufacture of specialty silicone oils, elastomers, and high-performance resins.
• Surface Modification: Employed to hydrophobize and modify the surface properties of inorganic materials like silica, glass, and metals for improved compatibility in composite materials.
• Adhesion Promoter: Acts as a coupling agent in sealants, adhesives, and coatings to enhance bonding between organic polymers and inorganic substrates.
• Chemical Synthesis: A key precursor for the synthesis of other functional silanes, such as alkoxysilanes or aminosilanes, through nucleophilic substitution reactions.
• Laboratory Reagent: Utilized in research and development for method development and small-scale synthesis of novel organosilicon compounds.

Basic Information

Product Name	Chlorodimethylisobutylsilane
CAS No.	27490-70-6
Molecular Formula	C6H15ClSi
Molecular Weight	150.72 g/mol
Synonyms	Dimethylisobutylchlorosilane; Isobutyldimethylchlorosilane; Chloro(dimethyl)(2-methylpropyl)silane; (2-Methylpropyl)dimethylchlorosilane; Dimethyl(2-methylpropyl)chlorosilane; Isobutylchlorodimethylsilane; NSC 163090; (Isobutyl)dimethylsilyl chloride
EINECS	Contact for details

Quality Control

Our Chlorodimethylisobutylsilane is produced under stringent quality management systems. Every batch undergoes rigorous analytical testing, including GC, NMR, and titration, to ensure high chemical purity and consistency. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Due to its moisture-sensitive (hygroscopic) nature, containers must be kept tightly sealed under an inert atmosphere (nitrogen or argon) to prevent hydrolysis. Keep away from heat, sparks, open flames, and incompatible materials such as strong bases, alcohols, and oxidizing agents.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (at 20°C)	0.86 - 0.88 g/mL
Refractive Index (n20D)	1.420 - 1.425
Boiling Point	Approx. 135-140 °C

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