Date published: 2026-4-3

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Boc-L-cysteic acid (CAS 277316-57-1)

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Alternate Names:
(2R)-2-(tert-butoxycarbonylamino)-3-sulfo-propanoic acid
CAS Number:
277316-57-1
Molecular Weight:
269.28
Molecular Formula:
C8H15NO7S
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Boc-L-cysteic acid, an amino acid derivative, has gained significant recognition in scientific research for its role as a reagent in protein modification and as useful for investigating protein structure, function, and regulation. This compound is a modified version of the natural amino acid L-cysteine, an indispensable component of numerous proteins to life. Its applications encompass a wide range of protein-related studies, including protein structure elucidation, functional analysis, and regulatory investigations. Moreover, Boc-L-cysteic acid has been employed to explore the impact of post-translational modifications on protein functionality, investigate protein-protein interactions, and examine protein-ligand interactions.


Boc-L-cysteic acid (CAS 277316-57-1) References

  1. Structure-activity relationships of 111In- and 99mTc-labeled quinolin-4-one peptidomimetics as ligands for the vitronectin receptor: potential tumor imaging agents.  |  Harris, TD., et al. 2006. Bioconjug Chem. 17: 1294-313. PMID: 16984141
  2. Radiolabeled divalent peptidomimetic vitronectin receptor antagonists as potential tumor radiotherapeutic and imaging agents.  |  Harris, TD., et al. 2007. Bioconjug Chem. 18: 1266-79. PMID: 17579472
  3. Radiosynthesis and biodistribution of a prosthetic group (¹⁸F-FENMA) conjugated to cyclic RGD peptides.  |  Olberg, DE., et al. 2010. Bioconjug Chem. 21: 2297-304. PMID: 21070000
  4. Covalently Tethered Rhodamine Voltage Reporters for High Speed Functional Imaging in Brain Tissue.  |  Deal, PE., et al. 2020. J Am Chem Soc. 142: 614-622. PMID: 31829585
  5. Tetrahydroimidazo[1,2-a]pyrazine Derivatives: Synthesis and Evaluation as Gαq -Protein Ligands.  |  Küppers, J., et al. 2020. Chemistry. 26: 12615-12623. PMID: 32428383
  6. Biophysical matrix cues from the regenerating niche direct muscle stem cell fate in engineered microenvironments.  |  Madl, CM., et al. 2021. Biomaterials. 275: 120973. PMID: 34224984
  7. A silicon-rhodamine chemical-genetic hybrid for far red voltage imaging from defined neurons in brain slice.  |  Ortiz, G., et al. 2021. RSC Chem Biol. 2: 1594-1599. PMID: 34977574

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Boc-L-cysteic acid, 1 g

sc-326464
1 g
$224.00

Boc-L-cysteic acid, 5 g

sc-326464A
5 g
$760.00