Date published: 2026-4-30

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Trimethylsulfonium iodide (CAS 2181-42-2)

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CAS Number:
2181-42-2
Molecular Weight:
204.07
Molecular Formula:
C3H9IS
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Trimethylsulfonium iodide is a quaternary ammonium salt that serves as a methylating agent in organic synthesis. It functions by transferring a methyl group to various substrates, including nucleophiles such as phenols, amines, and thiols. Trimethylsulfonium Iodide′s mechanism of action involves the transfer of the methyl group from the sulfur atom to the target molecule, resulting in the formation of a new carbon-carbon bond. This process is particularly useful in the synthesis of agrochemicals, and products. Trimethylsulfonium iodide can also be employed in the methylation of DNA and RNA, playing a role in molecular biology. Its ability to facilitate the introduction of methyl groups into organic compounds may be useful in the development of new chemical entities and the modification of biomolecules for purposes.

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Trimethylsulfonium iodide, 25 g

sc-253774
25 g
$27.00