Description

Cyclopentyltrichlorosilane CAS NO 14579-03-4 is a highly reactive organosilicon compound primarily used as a key building block in organic synthesis and advanced material science. Its core value lies in its ability to introduce the cyclopentyl group and reactive silicon-chlorine bonds, enabling precise surface modification and the creation of novel silane coupling agents. This chemical is essential for R&D and production teams in the pharmaceutical, agrochemical, and specialty polymer industries seeking to develop new active ingredients or enhance material properties.

Application

• Silane Coupling Agent Precursor: Serves as a critical intermediate for synthesizing functional silanes used to improve adhesion between organic polymers and inorganic surfaces like glass, metals, and minerals.
• Pharmaceutical Intermediate: Used in the synthesis of complex molecules, particularly where the cyclopentyl moiety is required for biological activity in drug discovery and development.
• Surface Modification Agent: Applied to modify the surface properties of silica, nanoparticles, and other substrates to impart hydrophobicity or specific chemical functionality.
• Polymer & Resin Synthesis: Acts as a monomer or cross-linking agent in the production of specialty silicones, resins, and high-performance polymers.
• Agrochemical Synthesis: Employed as a building block in the creation of novel pesticides, herbicides, and plant growth regulators.
• Chemical Vapor Deposition (CVD): Used as a silicon source in CVD processes for depositing silicon-containing thin films on semiconductors and other electronic components.

Basic Information

Product Name	Cyclopentyltrichlorosilane
CAS No.	14579-03-4
Molecular Formula	C5H9Cl3Si
Molecular Weight	203.57 g/mol
Synonyms	Cyclopentyltrichlorosilane; Trichloro(cyclopentyl)silane; Cyclopentylsilicon trichloride; Silane, trichlorocyclopentyl-; (Cyclopentyl)trichlorosilane; Cyclopentyl-trichlorosilane; CPTCS; Cyclopentyltrichlorosilane (CPTCS)
EINECS	238-627-2

Quality Control

Our Cyclopentyltrichlorosilane is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including GC, NMR, and titration methods, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, purity, 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 temperatures between 2°C and 8°C (refrigerated) to minimize volatility and degradation. 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) after opening. Keep away from heat, sparks, open flames, and incompatible materials such as water, strong 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)	1.25 - 1.30 g/mL
Refractive Index (n20D)	1.470 - 1.480
Chloride Content	Contact for details

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