Description

1,2-Dichlorotetramethyldisilane is a versatile organosilicon compound that serves as a critical building block in advanced material synthesis. Its value lies in its bifunctional chlorosilane structure, enabling precise chemical modifications and serving as a key precursor for silicon-containing polymers and surface treatments. This high-purity intermediate is essential for manufacturers in the semiconductor, specialty polymer, and pharmaceutical sectors seeking to develop innovative silicon-based products.

Application

• Semiconductor Manufacturing: As a precursor for chemical vapor deposition (CVD) and atomic layer deposition (ALD) processes to create silicon carbide (SiC) or silicon nitride thin films.
• Silicone Polymer Synthesis: A key monomer or cross-linking agent in the production of specialized polysilanes, polysiloxanes, and other silicon-based polymers.
• Surface Modification: Used to functionalize silica, glass, or other inorganic surfaces with organic groups via silane chemistry for improved adhesion or hydrophobicity.
• Organic Synthesis Intermediate: Employed in pharmaceutical and agrochemical research for introducing disilanyl groups into complex organic molecules.
• Adhesive & Sealant Formulations: Acts as a coupling agent or cross-linker in high-performance silicone adhesive and sealant systems.
• Research & Development: A valuable reagent in academic and industrial R&D for exploring new organosilicon chemistry and material science applications.

Basic Information

Product Name	1,2-Dichlorotetramethyldisilane
CAS No.	4342-61-4
Molecular Formula	C4H12Cl2Si2
Molecular Weight	187.22 g/mol
Synonyms	1,2-Dichloro-1,1,2,2-tetramethyldisilane; Tetramethyl-1,2-dichlorodisilane; Dichlorotetramethyldisilane; 1,2-Dichlorotetramethyl-disilan; Disilane, 1,2-dichloro-1,1,2,2-tetramethyl-; TMDS-Cl2
EINECS	224-411-9

Quality Control

Our 1,2-Dichlorotetramethyldisilane is manufactured under controlled conditions to ensure batch-to-batch consistency and high purity. Quality is verified through rigorous analytical testing, including gas chromatography (GC) and NMR spectroscopy. A comprehensive 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 at temperatures between 2°C and 8°C (refrigerated) to minimize volatility and degradation. Due to its hygroscopic and moisture-sensitive nature, containers must be kept tightly sealed under an inert atmosphere (argon or nitrogen) when not in use. Keep away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Chloride Content	36.5 - 38.5 %
Density at 20°C	1.00 - 1.05 g/mL
Refractive Index (n20D)	1.450 - 1.455
Water Content (KF)	≤ 0.1%

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