Description

1,1,1,3,3-Pentachloro-1,3-disilapropane is a highly reactive organosilicon compound, specifically a chlorinated disilane, valued for its role as a versatile chemical building block in advanced material synthesis. Its primary commercial significance lies in its ability to introduce silicon-containing functional groups, enabling the creation of specialized polymers, coatings, and silicon-based precursors. This product is essential for R&D and manufacturing in the semiconductor, specialty polymer, and advanced ceramics industries, where precise molecular architecture is critical.

Application

• Semiconductor Manufacturing: Key precursor for chemical vapor deposition (CVD) and atomic layer deposition (ALD) processes to create silicon carbide (SiC) or silicon-containing thin films.
• Specialty Polymers: Serves as a monomer or cross-linking agent in the synthesis of novel polysilanes and silicon-based polymers with unique thermal and optical properties.
• Surface Modification: Used to create hydrophobic or oleophobic coatings on glass, metals, and textiles via silanization reactions.
• Ceramic Precursors: Acts as a molecular precursor for polymer-derived ceramics (PDCs), leading to high-performance SiC-based materials.
• Organic Synthesis: Employed as a silylating or chlorinating agent in the synthesis of complex organosilicon molecules for pharmaceutical and agrochemical intermediates.
• Adhesives & Sealants: Functions as an adhesion promoter and cross-linker in high-temperature silicone formulations.

Basic Information

Product Name	1,1,1,3,3-Pentachloro-1,3-disilapropane
CAS No.	18171-02-3
Molecular Formula	C3H5Cl5Si2
Molecular Weight	264.42 g/mol
Synonyms	1,3-Disilapropane, 1,1,1,3,3-pentachloro-; Pentachlorodisilapropane; Dichloro(chloromethyl)silylmethyldichlorosilane; (Dichlorosilylmethyl)dichloro(chloromethyl)silane; Bis(dichlorosilyl)methane chloride; Chloromethylmethanediylbis[dichlorosilane]
EINECS	Contact for details

Quality Control

Our 1,1,1,3,3-Pentachloro-1,3-disilapropane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including assay and impurity profiling, to ensure consistency and high purity suitable for demanding industrial and research applications. A Certificate of Analysis (COA) detailing specific results for purity, identity, and key physical properties is provided with every shipment to guarantee supply reliability and technical compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic and highly volatile nature, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent moisture absorption and decomposition. Keep away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 97.0%
Density (at 20°C)	~1.45 g/cm³
Boiling Point	~185-190°C
Chloride Content	Contact for details

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