Date published: 2025-10-17

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(R)-(+)-Cysteine hydrochloride (CAS 345909-32-2)

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Alternate Names:
L-Cysteine hydrochloride hydrate
CAS Number:
345909-32-2
Purity:
≥98%
Molecular Weight:
157.62
Molecular Formula:
C3H7NO2S•HCl
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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(R)-(+)-Cysteine hydrochloride hydrate is a widely studied chiral molecule that finds extensive use in various research domains, particularly in the field of biochemistry. Researchers utilize this compound to understand protein folding, as it can serve as a building block for larger peptide structures. It has a role in the synthesis of other sulfur-containing amino acids, which are critical for a variety of metabolic pathways. In addition, this compound is often employed in the study of enantioselective processes, which are fundamental to the production of certain biologically active compounds in the lab. Its ability to influence redox reactions is also a subject of interest, as these reactions are central to cellular bioenergetics and signaling.


(R)-(+)-Cysteine hydrochloride (CAS 345909-32-2) References

  1. A new functionalized, chiral disulfide derived from l-cysteine: (R,R)-bis[(3-benzyloxazolan-4-yl)-methane] disulfide as a catalyst in the diethylzinc addition to aldehydes  |  Antonio L Braga a, Helmoz R Appelt a, Paulo H Schneider a, Claudio C Silveira a, Ludger A Wessjohann b 1. 1999. Tetrahedron: Asymmetry. 10: 1733-1738.
  2. New C2-symmetric chiral disulfide ligands derived from (R)-cysteine  |  Antonio L Braga a, Helmoz R Appelt a, Paulo H Schneider a, Oscar E.D Rodrigues a, Claudio C Silveira a, Ludger A Wessjohann b †. 2001. Tetrahedron. 57: 3291-3295.

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

(R)-(+)-Cysteine hydrochloride, 5 g

sc-236605
5 g
$48.00

(R)-(+)-Cysteine hydrochloride, 100 g

sc-236605A
100 g
$97.00