C7352 Sigma


from non-animal source, BioReagent, suitable for cell culture, ≥98%

Synonym: (R)-2-Amino-3-mercaptopropionic acid


Biochem/physiol Actions

NMDA glutamatergic receptor agonist.

Other Notes

L-Cysteine is used to supplement cell culture media. This product is a non-animal source amino acid useful for serum-free media formulations intended for biomanufacturing applications.

Tandem Mass Spectrometry data independently generated by Scripps Center for Metabolomics is available to view or download in PDF. C7352.pdf Tested metabolites are featured on Scripps Center for Metabolomics METLIN Metabolite Database. To learn more, visit


10 mg in autosample vial

General description

L-Cysteine is a proteinogenic amino acid incorporated into proteins as directed by the genetic code. The thiol-side chain participates in a variety of oxidation/reduction reactions within the cell. The side chain participates in the formation of β bonds that modulate the secondary and ternary structure of proteins. Cysteine is essential and limiting for the formation of glutathione, an important antioxidant, within the cell.

Price and Availability

Suggested Laboratory Gloves

Laboratory GlovesThis substance has been tested against several types of hand protection for CE compliance. Click below to find the recommended gloves for handling this product.

Metabolomic Pathways Chart

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