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L-Cysteinesulfinic acid monohydrate (CAS 207121-48-0)

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Alternate Names:
3-Sulfino-L-alanine Monohydrate
CAS Number:
207121-48-0
Molecular Weight:
171.17
Molecular Formula:
C3H7NO4S•H2O
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-Cysteinesulfinic acid monohydrate is a compound that functions as a precursor in the biosynthesis of taurine and hypotaurine. It plays a role in the metabolism of sulfur-containing amino acids and is involved in the regulation of cellular redox balance. At the molecular level, L-Cysteinesulfinic acid monohydrate is a key intermediate in the conversion of cysteine to taurine, which is for various physiological processes. Its mechanism of action involves participating in enzymatic reactions that lead to the production of taurine, an important compound with various biological functions. L-Cysteinesulfinic acid monohydrate is involved in the regulation of cellular osmolarity and acts as a scavenger of reactive oxygen species, contributing to the maintenance of cellular homeostasis. Its presence and activity are for the proper functioning of cellular processes related to sulfur metabolism and redox regulation.


L-Cysteinesulfinic acid monohydrate (CAS 207121-48-0) References

  1. Reactive sulfur species: kinetics and mechanism of the oxidation of cystine by hypochlorous acid to give N,N'-dichlorocystine.  |  Nagy, P. and Ashby, MT. 2005. Chem Res Toxicol. 18: 919-23. PMID: 15962926
  2. Reactive sulfur species: kinetics and mechanism of the hydrolysis of cysteine thiosulfinate ester.  |  Nagy, P. and Ashby, MT. 2007. Chem Res Toxicol. 20: 1364-72. PMID: 17764150
  3. Reactive sulfur species: kinetics and mechanisms of the oxidation of cysteine by hypohalous acid to give cysteine sulfenic acid.  |  Nagy, P. and Ashby, MT. 2007. J Am Chem Soc. 129: 14082-91. PMID: 17939659
  4. Reactive sulfur species: kinetics and mechanisms of the reaction of cysteine thiosulfinate ester with cysteine to give cysteine sulfenic acid.  |  Nagy, P., et al. 2007. J Org Chem. 72: 8838-46. PMID: 17941676
  5. Synthesis of pdCpAs and transfer RNAs activated with derivatives of aspartic acid and cysteine.  |  Chen, S. and Hecht, SM. 2008. Bioorg Med Chem. 16: 9023-31. PMID: 18790645
  6. Oxidation of cysteinesulfinic acid by hexachloroiridate(IV).  |  Bhattarai, N. and Stanbury, DM. 2014. J Phys Chem B. 118: 1097-101. PMID: 24400869
  7. Reactivity of C-terminal cysteines with HNO.  |  Keceli, G. and Toscano, JP. 2014. Biochemistry. 53: 3689-98. PMID: 24869490
  8. Highly sensitive quantification for human plasma-targeted metabolomics using an amine derivatization reagent.  |  Arashida, N., et al. 2017. Anal Chim Acta. 954: 77-87. PMID: 28081817
  9. Effect of cell culture medium additives on color and acidic charge variants of a monoclonal antibody.  |  Vijayasankaran, N., et al. 2018. Biotechnol Prog. 34: 1298-1307. PMID: 29882320
  10. Mechanistic Insights into Dissolved Organic Sulfur Photomineralization through the Study of Cysteine Sulfinic Acid.  |  Ossola, R., et al. 2020. Environ Sci Technol. 54: 13066-13076. PMID: 32936630
  11. Revisiting a proposed kinetic model for the reaction of cysteine and hydrogen peroxide via cysteine sulfenic acid  |   and Michael T. Ashby, Péter Nagy. January 2007. Volume39, Issue1: Pages 32-38.
  12. Evolution of sulfur speciation in bitumen through hydrous pyrolysis induced thermal maturation of Jordanian Ghareb Formation oil shale  |  JE Birdwell, MD Lewan, KD Bake, TB Bolin… - Fuel, 2018 - Elsevier. 1 May 2018,. Fuel. Volume 219,: Pages 214-222.

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

L-Cysteinesulfinic acid monohydrate, 25 mg

sc-215212B
25 mg
$42.00

L-Cysteinesulfinic acid monohydrate, 100 mg

sc-215212
100 mg
$104.00

L-Cysteinesulfinic acid monohydrate, 250 mg

sc-215212A
250 mg
$272.00