Description

n-Propyl(3-Chloropropyl)Dichlorosilane is a highly reactive organosilicon compound that serves as a critical building block in advanced material synthesis. Its bifunctional structure, featuring both chloropropyl and dichlorosilane groups, makes it an essential precursor for creating tailored silane coupling agents and functional silicone polymers. This chemical is primarily sought by manufacturers in the specialty chemical, electronics, and advanced materials sectors for applications requiring precise surface modification and polymer cross-linking.

Application

• Silane Coupling Agent Precursor: Key intermediate for synthesizing proprietary silane coupling agents used to enhance adhesion between inorganic fillers (like glass, minerals) and organic polymer matrices in composites.
• Surface Modification: Used to functionalize silica, glass, and other metal oxide surfaces, imparting specific organic groups for improved compatibility in coatings, sealants, and adhesives.
• Silicone Polymer Synthesis: Serves as a monomer or cross-linking agent in the production of specialty silicone resins and elastomers with specific chlorine-functional side chains.
• Electronics & Semiconductor Materials: Employed in the fabrication of dielectric layers, encapsulation materials, and as a precursor in chemical vapor deposition (CVD) processes for thin films.
• Hydrophobic Coatings: A building block for creating water-repellent surface treatments for textiles, construction materials, and optical components.
• Pharmaceutical & Agro-chemical Intermediates: Used in the synthesis of more complex organosilicon molecules with potential biological activity.

Basic Information

Product Name	n-Propyl(3-Chloropropyl)Dichlorosilane
CAS No.	54979-21-4
Molecular Formula	C6H13Cl3Si
Molecular Weight	219.61 g/mol
Synonyms	Dichloro(3-chloropropyl)propylsilane; 3-Chloropropyldichloropropylsilane; Propyl(3-chloropropyl)dichlorosilane; Dichloropropyl(3-chloropropyl)silane; (3-Chloropropyl)propyldichlorosilane; Silane, dichloro(3-chloropropyl)propyl-; 1-Chloro-3-(dichloropropylsilyl)propane
EINECS	Contact for details

Quality Control

Our n-Propyl(3-Chloropropyl)Dichlorosilane is manufactured under strict process controls to ensure batch-to-batch consistency and high purity. Quality is verified through a comprehensive suite of analytical techniques including gas chromatography (GC), infrared spectroscopy (IR), and titration methods. A Certificate of Analysis (COA) detailing purity, identity, 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 away from heat and incompatible materials. Due to its moisture-sensitive (hygroscopic) nature, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent hydrolysis. Recommended storage temperature is 2-8°C for long-term stability. Keep away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 97.0%
Density (20°C)	1.18 - 1.22 g/mL
Refractive Index (n20D)	1.458 - 1.462

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