Description

Chloromethylpropyl Methyl Dichlorosilane is a highly reactive organosilicon compound, specifically a chlorosilane, that serves as a critical intermediate in the synthesis of advanced silicone polymers and functional materials. Its value lies in its bifunctional nature, offering both chloromethyl and dichlorosilane groups for versatile chemical modifications, enabling precise control over polymer architecture and surface properties. This product is essential for manufacturers in the silicone elastomer, resin, and specialty chemical industries seeking to develop materials with tailored adhesion, release, or cross-linking characteristics.

Application

• Silicone Intermediate: A key building block for the synthesis of custom siloxane polymers and copolymers.
• Surface Modification Agent: Used to functionalize inorganic surfaces (e.g., silica, glass) to impart organophilic properties or create reactive sites for further grafting.
• Adhesion Promoter Precursor: Serves as a starting material for manufacturing silane coupling agents that enhance bonding between organic polymers and inorganic substrates.
• Release Coating Formulations: Incorporated into silicone release liner chemistries to modify cure profiles and surface energy.
• Cross-Linking Agent: Functions as a cross-linker in specific silicone resin systems to improve thermal and mechanical stability.
• Pharmaceutical & Agrochemical Intermediates: Utilized in the synthesis of more complex organosilicon molecules for specialized applications.

Basic Information

Item	Detail
Product Name	Chloromethylpropyl Methyl Dichlorosilane
CAS No.	1628-11-1
Molecular Formula	C5H11Cl3Si
Molecular Weight	205.58 g/mol
Synonyms	(3-Chloropropyl)methyldichlorosilane; Methyldichloro(3-chloropropyl)silane; 1-Chloro-3-(methyldichlorosilyl)propane; 3-Chloropropyldichloromethylsilane; Dichloro(methyl)(3-chloropropyl)silane; Methyl(3-chloropropyl)dichlorosilane; Silane, dichloro(3-chloropropyl)methyl-; (γ-Chloropropyl)methyldichlorosilane
EINECS	Contact for details

Quality Control

Our Chloromethylpropyl Methyl Dichlorosilane is manufactured under stringent process controls to ensure batch-to-batch consistency and high purity. Quality is verified through comprehensive analytical testing including Gas Chromatography (GC) for assay and impurity profiling. A Certificate of Analysis (COA) detailing purity, identity, and specific test results 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 away from heat sources and incompatible materials. Due to its highly volatile and hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent hydrolysis and maintain product integrity. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 97.0%
Density (20°C)	~1.22 g/cm³
Refractive Index (n20/D)	~1.460
Water Content (Karl Fischer)	≤ 0.1%

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