Date published: 2025-10-12

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Chlorotrimethylsilane (CAS 75-77-4)

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Alternate Names:
Trimethylsilyl chloride, TMCS
CAS Number:
75-77-4
Molecular Weight:
108.64
Molecular Formula:
C3H9ClSi
Supplemental Information:
This is classified 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.
Available in US only.
* Refer to Certificate of Analysis for lot specific data.

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Chlorotrimethylsilane, sometimes referred to as trimethylchlorosilane, is an organosilicon compound. It presents as a colorless, volatile liquid with a distinct smell and is highly combustible. This compound is employed in organic synthesis, serving as a reagent for creating organosilicon compounds and as a provider of silicon for the production of various products. It also finds use in the creation of specialty chemicals. Chlorotrimethylsilane′s versatility shows in organic synthesis, where it partakes in a multitude of reactions. It′s especially useful in synthesizing organosilicon compounds like silanes, siloxanes, and silazanes. Chlorotrimethylsilane is a nucleophilic reagent, enabling it to react with a range of electrophiles. It interacts with alkenes and alkynes to generate organosilicon compounds and with carbon-carbon double bonds to yield silazanes. It also reacts with aldehydes and ketones to produce siloxanes, and with alcohols to create silanes.


Chlorotrimethylsilane (CAS 75-77-4) References

  1. Chlorotrimethylsilane.  |  Buschmann, J., et al. 2000. Acta Crystallogr C. 56 (Pt 1): 121-2. PMID: 10710694
  2. Chlorotrimethylsilane as a reagent for gas chromatographic analysis of fats and oils.  |  Eras, J., et al. 2001. J Chromatogr A. 918: 227-32. PMID: 11403452
  3. Dealkylation of phosphonate esters with chlorotrimethylsilane.  |  Gutierrez, AJ., et al. 2001. Nucleosides Nucleotides Nucleic Acids. 20: 1299-302. PMID: 11563008
  4. Vibrational spectroscopic studies in the hydrolysis and condensation of chlorotrimethylsilane.  |  Li, YS. and Le, K. 2004. Spectrochim Acta A Mol Biomol Spectrosc. 60: 927-31. PMID: 15036105
  5. Desulfation of sulfated galactans with chlorotrimethylsilane. Characterization of beta-carrageenan by 1H NMR spectroscopy.  |  Kolender, AA. and Matulewicz, MC. 2004. Carbohydr Res. 339: 1619-29. PMID: 15183736
  6. Chlorotrimethylsilane, a reagent for the direct quantitative analysis of fats and oils present in vegetable and meat samples.  |  Eras, J., et al. 2004. J Chromatogr A. 1047: 157-61. PMID: 15481471
  7. Vibrational spectrum of chlorotrimethylsilane.  |  Montejo, M., et al. 2005. Spectrochim Acta A Mol Biomol Spectrosc. 62: 293-301. PMID: 16257728
  8. Chlorotrimethylsilane-nitrate salts as oxidants: direct oxidative conversion of thiols and disulfides to sulfonyl chlorides.  |  Prakash, GK., et al. 2007. J Org Chem. 72: 5847-50. PMID: 17585828
  9. Chlorotrimethylsilane-promoted one-pot synthesis of steroidal[17,16-d]pyrimidines.  |  Wang, C., et al. 2010. Steroids. 75: 1033-8. PMID: 20600203
  10. Chlorotrimethylsilane activation of acylcyanamides for the synthesis of mono-N-acylguanidines.  |  Looper, RE., et al. 2011. J Org Chem. 76: 6967-71. PMID: 21732649
  11. The effect of chlorotrimethylsilane on bonding of nano hydroxyapatite with a chitosan-polyacrylamide matrix.  |  Bhat Kalambettu, A., et al. 2012. Carbohydr Res. 352: 143-50. PMID: 22364767
  12. Chlorotrimethylsilane promoted one-flask heterocyclic synthesis of 1,2,4-triazoles from nitrilimines: Modeling studies and bioactivity evaluation of LH-21 and Rimonabant analogues.  |  Tsai, SE., et al. 2020. Bioorg Chem. 104: 104299. PMID: 33002729
  13. Synthesis of (±)-Emtricitabine and (±)-Lamivudine by Chlorotrimethylsilane-Sodium Iodide-Promoted Vorbrüggen Glycosylation.  |  Mear, SJ., et al. 2022. J Org Chem. 87: 2887-2897. PMID: 35030006
  14. Cu-catalysed transamidation of unactivated aliphatic amides.  |  Kumar, V., et al. 2022. Org Biomol Chem. 20: 6931-6940. PMID: 35983826

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Chlorotrimethylsilane, 250 ml

sc-294014
250 ml
$41.00
US: Only available in the US

Chlorotrimethylsilane, 1 L

sc-294014A
1 L
$102.00
US: Only available in the US