168149

Sigma-Aldrich

L-Cysteine

97%

Synonym(s):
(R)-2-Amino-3-mercaptopropionic acid
Linear Formula:
HSCH2CH(NH2)CO2H
CAS Number:
Molecular Weight:
121.16
Beilstein/REAXYS Number:
1721408
EC Number:
MDL number:
eCl@ss:
32160406
PubChem Substance ID:
NACRES:
NA.22
Pricing and availability is not currently available.

Quality Level

assay

97%

optical activity

α20/D +6.5±1.5°, c = 2 in 5 M HCl

optical purity

ee: 96% (GLC)

application(s)

peptide synthesis: suitable

mp

240 °C (dec.) (lit.)

solubility

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

SMILES string

NC@@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

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General description

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).
Naturally occurring non-essential amino acid.

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.

Packaging

2.5 g in glass bottle
25, 100, 500 g in poly bottle
2.5 kg in poly bottle

Biochem/physiol Actions

NMDA glutamatergic receptor agonist.

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Hazard Codes

Xn

Risk Statement

22

RIDADR

NONH for all modes of transport

WGK Germany

WGK 1

L-cysteine functionalized gold nanoparticles for the colorimetric detection of Hg2+ induced by ultraviolet light
Chai F
Nanotechnology, 21(2), 025501-025501 (2009)
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)
Tanzila Mukhtar et al.
Scientific reports, 10(1), 4625-4625 (2020-03-15)
Neural stem cells (NSCs) generate neurons of the cerebral cortex with distinct morphologies and functions. How specific neuron production, differentiation and migration are orchestrated is unclear. Hippo signaling regulates gene expression through Tead transcription factors (TFs). We show that Hippo...
Antioxidant effects of sulfur-containing amino acids
Atmaca G
Yonsei Medical Journal, 45, 776-788 (2004)
John Gilchrist et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(51), E5016-E5024 (2013-12-04)
Voltage-gated sodium (Nav) channels are embedded in a multicomponent membrane signaling complex that plays a crucial role in cellular excitability. Although the mechanism remains unclear, β-subunits modify Nav channel function and cause debilitating disorders when mutated. While investigating whether β-subunits...
Articles
Antioxidants protect biological systems from oxidative damage produced by oxygen-containing free radicals and from redoxactive transition metal ions such as iron, copper, and cadmium.
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Protocols
Separation of L-Alanine; Glycine; L-Valine; L-Leucine; L-Isoleucine; L-Proline; L-Methionine; L-Serine; L-Threonine; L-Phenylalanine; L-Aspartic acid; L-4-Hydroxyproline; L-Cysteine; L-Glutamic acid; L-Asparagine; L-Lysine; L-Glutamine; L-Histidine; L-Tyrosine; L-Tryptophan; L-Cystine
Read More

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