Skip to Content
Merck

168149

L-Cysteine

97%, for peptide synthesis

Synonym(s):

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

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View

About This Item

Linear Formula:
HSCH2CH(NH2)CO2H
CAS Number:
Molecular Weight:
121.16
NACRES:
NA.22
PubChem Substance ID:
eCl@ss:
32160406
UNSPSC Code:
12352209
EC Number:
200-158-2
MDL number:
Beilstein/REAXYS Number:
1721408
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist


Product Name

L-Cysteine, 97%

Quality Level

assay

97%

form

solid

optical activity

[α]20/D +6.5±1.5°, c = 2 in 5 M HCl

optical purity

ee: 96% (GLC)

reaction suitability

reaction type: solution phase peptide synthesis

mp

240 °C (dec.) (lit.)

solubility

hydrochloric acid: 5% in 1N, clear, colorless

application(s)

peptide synthesis

SMILES string

N[C@@H](CS)C(O)=O

InChI

1S/C3H7NO2S/c4-2(1-7)3(5)6/h2,7H,1,4H2,(H,5,6)/t2-/m0/s1

InChI key

XUJNEKJLAYXESH-REOHCLBHSA-N

General description

Naturally occurring non-essential amino acid.
L-cysteine is a sulfur-containing non-essential amino acid. Its ability to reduce colitis symptoms is being assessed for potential use in treating inflammatory bowel disease (IBD).

Application

L-cysteine can be used as a cysteine source to prepare L-cysteine functionalized gold nanoparticles for use as probes in the colorimetric detection of Hg2+ in aqueous solution.

Biochem/physiol Actions

NMDA glutamatergic receptor agonist.


Still not finding the right product?

Explore all of our products under L-Cysteine


Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves



Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library



Xin Li et al.
Journal of diabetes research, 2020, 9589507-9589507 (2020-02-23)
Chronic wounds are a major global health problem with the presence of biofilm significantly contributing to wound chronicity. Current treatments are ineffective in resolving biofilm and simultaneously killing the bacteria; therefore, effective biofilm-resolving drugs are needed. We have previously shown
L-cysteine supplementation attenuates local inflammation and restores gut homeostasis in a porcine model of colitis
Kim CJ
Biochim. Biophys. Acta Gen. Subj., 1790(10), 1161-1169 (2009)
L-cysteine functionalized gold nanoparticles for the colorimetric detection of Hg2+ induced by ultraviolet light
Chai F
Nanotechnology, 21(2), 025501-025501 (2009)