Date published: 2026-5-3

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1,1,2,2-Tetramethyldisilane (CAS 814-98-2)

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CAS Number:
814-98-2
Molecular Weight:
118.32
Molecular Formula:
C4H14Si2
Supplemental Information:
This is as a Dangerous Good for transport and may be subject to additional shipping charges.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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1,1,2,2-Tetramethyldisilane (TMD) emerges as a silicon-based compound highly favored in research laboratories, boasting a wide array of applications. This colorless, volatile liquid possesses a boiling point of 77°C and a melting point of -78°C. In the realm of scientific research, 1,1,2,2-Tetramethyldisilane serves a diverse range of purposes. Acting as a reagent, it plays a pivotal role in organic synthesis. Additionally, it functions as a catalyst in polymerization reactions, while serving as a starting material for the preparation of organosilicon compounds. Furthermore, the compound partakes in the synthesis of polysilanes, which comprise polymers containing alternating silicon and carbon atoms. Remarkably, 1,1,2,2-Tetramethyldisilane has even been utilized in the creation of nanostructured materials like nanotubes and nanowires. As an organosilicon compound, 1,1,2,2-Tetramethyldisilane enters into reactions with other organic compounds to yield organosilicon derivatives. The mechanism of this reaction involves the formation of a silicon-carbon bond, followed by a nucleophilic substitution reaction. Consequently, the combination of 1,1,2,2-Tetramethyldisilane with an organic compound generates an organosilicon derivative, which can undergo further reactions, leading to an array of diverse organosilicon compounds.


1,1,2,2-Tetramethyldisilane (CAS 814-98-2) References

  1. Synthesis, Structure, and Reactivity of 1,2-(1',1',2',2'-Tetramethyldisilane-1',2')carborane.  |  de Rege, FM., et al. 1999. Inorg Chem. 38: 486-489. PMID: 11673953
  2. Unraveling the complex chemistry using dimethylsilane as a precursor gas in hot wire chemical vapor deposition.  |  Toukabri, R. and Shi, Y. 2014. Phys Chem Chem Phys. 16: 7896-906. PMID: 24647875
  3. A Mechanistic Study of Thermal Decomposition of 1,1,2,2-Tetramethyldisilane Using Vacuum Ultraviolet Photoionization Time-of-Flight Mass Spectrometry.  |  Shao, K., et al. 2022. J Phys Chem A. 126: 1085-1093. PMID: 35138857

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

1,1,2,2-Tetramethyldisilane, 1 g

sc-224861
1 g
$146.00