Date published: 2026-3-18

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L-Methionine sulfoxide (CAS 3226-65-1)

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Alternate Names:
L-2-Amino-4-(methylsulfoxyl)butanoic acid
Application:
L-Methionine sulfoxide is a structural analog of glutamate
CAS Number:
3226-65-1
Molecular Weight:
165.21
Molecular Formula:
C5H11NO3S
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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L-Methionine sulfoxide is a compound that functions as an antioxidant in experimental applications. It acts by scavenging free radicals and reactive oxygen species, thereby protecting cells and biomolecules from oxidative damage. L-Methionine Sulfoxide′s mechanism of action involves the reduction of hydrogen peroxide and other reactive oxygen species, preventing them from causing cellular damage. L-Methionine sulfoxide achieves this by undergoing a redox reaction, where it is converted back to its reduced form, L-Methionine, after neutralizing the reactive oxygen species. L-Methionine Sulfoxide′s functional role lies in its ability to serve as a model molecule for studying antioxidant mechanisms and oxidative stress in biological systems. Its mechanism of action at the molecular level involves the direct interaction with reactive oxygen species, leading to the restoration of cellular redox balance.


L-Methionine sulfoxide (CAS 3226-65-1) References

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  2. Stereospecific micellar electrokinetic chromatography assay of methionine sulfoxide reductase activity employing a multiple layer coated capillary.  |  Zhu, Q., et al. 2013. Electrophoresis. 34: 2712-7. PMID: 23775584
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Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

L-Methionine sulfoxide, 5 g

sc-300889
5 g
$88.00

L-Methionine sulfoxide, 25 g

sc-300889A
25 g
$352.00