Description

3-Chloroisobutyldimethylchlorosilane is a highly reactive bifunctional organosilicon compound, serving as a critical building block in advanced material synthesis. Its dual functionality, featuring both a reactive chlorosilane group and a chlorinated alkyl chain, makes it an indispensable precursor for introducing specific functional groups onto silicon-based polymers and surfaces. This chemical is primarily sought by R&D chemists and process engineers in the pharmaceutical intermediates, specialty silicone, and surface modification sectors for creating custom silanes with tailored properties.

Application

• Pharmaceutical Intermediate Synthesis: Key starting material for introducing the 3-chloroisobutyl moiety into active pharmaceutical ingredients (APIs) and drug candidates.
• Functional Silane Coupling Agent: Used to modify inorganic surfaces (glass, silica) and polymers, improving adhesion and compatibility in composite materials.
• Precursor for Specialty Silicones: Serves as a monomer or cross-linking agent in the synthesis of custom polysiloxanes with specific chlorinated side chains for unique thermal or chemical resistance.
• Surface Hydrophobization: Applied in coatings and treatments to create water-repellent surfaces on various substrates.
• Polymer Modification: Used to graft functional groups onto polymer backbones, altering physical properties like solubility, glass transition temperature, and reactivity.
• Laboratory Reagent: Employed in organic and organometallic research for the controlled introduction of silicon and chlorine functionalities.

Basic Information

Product Name	3-Chloroisobutyldimethylchlorosilane
CAS No.	18145-83-0
Molecular Formula	C6H14Cl2Si
Molecular Weight	185.17 g/mol
Synonyms	Dimethyl(3-chloro-2-methylpropyl)chlorosilane; (3-Chloro-2-methylpropyl)dimethylchlorosilane; 1-Chloro-3-(chlorodimethylsilyl)-2-methylpropane; 3-Chloro-2-methylpropyldimethylchlorosilane; Chloro(3-chloro-2-methylpropyl)dimethylsilane; NSC 163081; Silane, chloro(3-chloro-2-methylpropyl)dimethyl-
EINECS	Contact for details

Quality Control

Every batch of 3-Chloroisobutyldimethylchlorosilane is manufactured and tested under a strict quality management system. We provide comprehensive analytical data to ensure the product meets the high-purity standards required for sensitive synthetic applications. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is supplied with each shipment, confirming compliance with agreed 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). Due to its hygroscopic and highly volatile nature, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent moisture absorption and decomposition. Keep away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (at 20°C)	~1.03 g/cm³
Refractive Index (n20/D)	~1.450

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