Description

1,1,3,3-Tetramethyl-1,3-Disilacyclobutane is a highly volatile, cyclic organosilicon compound that serves as a versatile precursor in advanced materials synthesis. Its strained four-membered ring structure makes it a valuable monomer for the controlled formation of polysilane and silicon carbide-based polymers. This chemical is essential for R&D and production in sectors requiring high-performance silicon-containing materials, such as semiconductors and specialty polymers.

Application

• Chemical Vapor Deposition (CVD) Precursor: Used as a silicon source for depositing silicon carbide (SiC) thin films in semiconductor manufacturing.
• Polymer Synthesis: Acts as a key monomer for ring-opening polymerization to produce linear polysilanes with controlled molecular weights.
• Ceramic Precursor: Serves as a preceramic polymer for the fabrication of silicon carbide fibers and composites.
• Surface Modification: Utilized in the functionalization of surfaces to impart specific hydrophobic or chemical properties.
• Organic Synthesis Intermediate: Employed in the synthesis of more complex organosilicon molecules for pharmaceutical and agrochemical research.
• Adhesion Promotion: Functions as a coupling agent or additive in specialty coatings and adhesives to improve bonding to inorganic substrates.

Basic Information

Product Name	1,1,3,3-Tetramethyl-1,3-Disilacyclobutane
CAS No.	1627-98-1
Molecular Formula	C6H16Si2
Molecular Weight	144.36 g/mol
Synonyms	1,1,3,3-Tetramethyl-1,3-disilacyclobutane; Tetramethyldisilacyclobutane; 1,3-Disilacyclobutane, 1,1,3,3-tetramethyl-; TMDSB; 1,1,3,3-Tetramethyl-1,3-disilacyclobutan; 1,1,3,3-Tetramethyl-disilacyclobutan; Cyclic Tetramethyldisilane
EINECS	216-631-7

Quality Control

Our 1,1,3,3-Tetramethyl-1,3-Disilacyclobutane is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including gas chromatography (GC) and nuclear magnetic resonance (NMR) spectroscopy, to ensure high purity and consistency. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Due to its highly volatile nature, store in a cool, well-ventilated place, preferably at temperatures between 2°C and 8°C. Keep away from heat, sparks, and open flames. Containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent degradation and moisture ingress.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Density (at 20°C)	0.80 - 0.85 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.