Description

Chloromethyldimethylsilane is a versatile organosilicon compound, a key chloromethylsilane derivative essential for introducing reactive chloromethyl groups into silicon-based materials. Its primary value lies in its dual functionality, serving as a crucial silylating agent and a reactive intermediate for the synthesis of more complex organosilicon architectures. This chemical is particularly needed by manufacturers in the silicone polymer, pharmaceutical, and advanced materials sectors for creating functionalized silanes, surface modifiers, and specialized silicone resins.

Application

• Silicone Intermediate Synthesis: A fundamental building block for producing a wide range of chloromethyl-functional siloxanes and silanes.
• Surface Modification & Coupling Agent: Used to impart reactive chloromethyl groups onto silica, glass, or other inorganic surfaces for subsequent functionalization.
• Pharmaceutical & Agrochemical Intermediates: Serves as a key reagent in the synthesis of silicon-containing active pharmaceutical ingredients (APIs) and crop protection agents.
• Polymer & Resin Modification: Incorporated into polymer backbones (e.g., silicones, epoxies) to introduce cross-linking sites or reactive handles for further chemistry.
• Adhesive & Sealant Formulations: Acts as an adhesion promoter and cross-linker in high-performance silicone-based adhesives and sealants.
• Specialty Silicone Fluids & Elastomers: Used in the production of specialty silicone oils and rubbers with tailored properties.

Basic Information

Item	Detail
Product Name	Chloromethyldimethylsilane
CAS No.	3144-74-9
Molecular Formula	C3H9ClSi
Molecular Weight	108.64 g/mol
Synonyms	(Chloromethyl)dimethylsilane; Dimethyl(chloromethyl)silane; Chloromethyldimethylsilicon; (Chloromethyl)dimethylsilyl; (Dimethylsilyl)methyl chloride; Silane, chloromethyldimethyl-; NSC 60545
EINECS	221-555-5

Quality Control

Our Chloromethyldimethylsilane is manufactured under stringent quality management systems. Each batch undergoes rigorous analytical testing, including GC, NMR, and titration methods, to ensure high purity and consistent performance. We provide comprehensive Certificates of Analysis (COA) with every shipment, detailing all critical specifications. Our production adheres to ISO 9001 standards, and we support our global customers with full regulatory documentation.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at temperatures between 15-25°C (59-77°F). Due to its hygroscopic and highly volatile nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent moisture absorption and degradation. Keep away from heat, sparks, open flames, and incompatible materials such as strong bases, strong oxidizing agents, and water.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Density (at 20°C)	0.88 - 0.90 g/mL
Refractive Index (n20D)	1.415 - 1.420
Boiling Point	97 - 99 °C
Water Content (KF)	≤ 0.1%

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