Description

1-Chloro-1-Methylsilacyclopentane is a specialized organosilicon compound featuring a five-membered silacyclopentane ring. This chemical serves as a valuable silicon-containing building block and precursor in advanced materials synthesis. It is primarily utilized by R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty polymer industries for introducing functional silane groups into target molecules.

Application

• Pharmaceutical Intermediate: Used in the synthesis of novel drug candidates, particularly those requiring silicon-based bioisosteres to modulate pharmacokinetic properties.
• Agrochemical Synthesis: Serves as a key precursor for creating silicon-containing active ingredients and performance-enhancing adjuvants.
• Polymer & Material Science: Acts as a monomer or cross-linking agent in the production of specialty silicones, siloxane-based polymers, and hybrid organic-inorganic materials.
• Surface Modification: Employed to functionalize silica, glass, or metal oxide surfaces, imparting specific hydrophobic or reactive properties.
• Chemical Vapor Deposition (CVD): Investigated as a potential precursor for depositing silicon carbide (SiC) or silicon-carbon thin films in semiconductor applications.
• Organic Synthesis Reagent: Utilized in ring-opening and coupling reactions to construct complex molecular architectures containing silicon.

Basic Information

Product Name	1-Chloro-1-Methylsilacyclopentane
CAS No.	2406-31-7
Molecular Formula	C5H11ClSi
Molecular Weight	134.68 g/mol
Synonyms	1-Chloro-1-methylsilacyclopentane; 1-Methyl-1-chlorosilacyclopentane; Chloro(methyl)silacyclopentane; 1-Chloro-1-methyl-1-silacyclopentane; Methylchlorosilacyclopentane; Silacyclopentane, 1-chloro-1-methyl-; (Chloromethyl)silacyclopentane
EINECS	Contact for details

Quality Control

Our 1-Chloro-1-Methylsilacyclopentane is produced under stringent quality management protocols. Each batch undergoes rigorous analytical testing, including GC, NMR, and Karl Fischer titration, to ensure high purity and consistency. We provide comprehensive Certificates of Analysis (COA) with every shipment, detailing all critical specifications. Our quality system is designed to meet the exacting standards required for research and industrial-scale synthesis.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic nature, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent moisture ingress and degradation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Density (20°C)	~1.00 g/mL
Refractive Index (n20D)	~1.460

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