Description

Chloropentamethyldisilane is a highly versatile organosilicon compound, primarily valued as a key reagent and building block in advanced silicon chemistry. Its core value proposition lies in its ability to introduce the pentamethyldisilanyl group, serving as a critical precursor for synthesizing complex silanes, siloxanes, and silicon-containing polymers. This product is essential for R&D and production in the semiconductor, pharmaceutical, and specialty materials industries, where precise silicon functionalization is required.

Application

• Semiconductor Manufacturing: Used as a silicon source or surface-modifying agent in chemical vapor deposition (CVD) and atomic layer deposition (ALD) processes.
• Pharmaceutical Intermediates: Acts as a protecting group or silylating agent in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs).
• Specialty Polymer Synthesis: Serves as a monomer or cross-linking agent for producing silicone resins, elastomers, and high-performance materials with tailored properties.
• Surface Chemistry & Coatings: Employed to modify material surfaces, enhancing hydrophobicity, adhesion, or corrosion resistance.
• Organic Synthesis Reagent: Utilized in laboratories for introducing silyl groups into organic molecules, facilitating subsequent reactions or purification.
• Research & Development: A fundamental compound for exploring new organosilicon chemistry, catalysis, and material science applications.

Basic Information

Product Name	Chloropentamethyldisilane
CAS No.	1560-28-7
Molecular Formula	C5H15ClSi2
Molecular Weight	166.80 g/mol
Synonyms	Chloropentamethyldisilane; Pentamethyldisilanyl chloride; 1-Chloro-1,1,2,2,2-pentamethyldisilane; Disilane, 1-chloro-1,1,2,2,2-pentamethyl-; (Chlorodimethylsilyl)trimethylsilane; Chloro(pentamethyl)disilane; PMDS-Cl; Contact for additional trade names.
EINECS	216-327-7

Quality Control

Our Chloropentamethyldisilane undergoes rigorous quality testing to ensure compliance with industry standards. Production follows strict protocols to guarantee batch-to-batch consistency, purity, and performance. Certificates of Analysis (COA) detailing specific lot results are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong acids, bases, and oxidizing agents. Due to its highly volatile nature, ensure containers are kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent degradation and maintain purity. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (at 20°C)	0.85 - 0.90 g/mL
Refractive Index (n20D)	1.420 - 1.430
Water Content (KF)	≤ 0.1%

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