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168149 Sigma-Aldrich

L-Cysteine

97%

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

  • CAS Number 52-90-4

  • Linear Formula HSCH2CH(NH2)CO2H

  • Molecular Weight 121.16

  •  Beilstein/REAXYS Number 1721408

  •  EC Number 200-158-2

  •  MDL number MFCD00064306

  •  eCl@ss 32160406

  •  PubChem Substance ID 24850236

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Properties

Related Categories Acacia, Allium cepa (Onion), Allium sativum (Garlic), Aloe Vera, Amino Acids & Derivatives,
InChI Key   XUJNEKJLAYXESH-REOHCLBHSA-N
assay   97%
optical activity   [α]20/D +6.5±1.5°, c = 2 in 5 M HCl
optical purity   ee: 96% (GLC)
mp   240 °C (dec.) (lit.)
solubility   hydrochloric acid: 5% in 1N, clear, colorless

Description

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

2.5 kg in poly bottle

25, 100, 500 g in poly bottle

Biochem/physiol Actions

NMDA glutamatergic receptor agonist.

Safety & Documentation

Safety Information

Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
1
RTECS 
HA1600000

Documents

Certificate of Analysis

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Certificate of Origin

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Milli-Q® Water Purification Solutions
Protocols & Articles

Articles

Dietary Antioxidants

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.1 During the oxi...
Biofiles Volume 2 Article 2
Keywords: Adhesion, Anti-inflammatory agents, Applications, Cancer, Cardiovascular, Catalysis, Diabetes, Diseases, Gene expression, Metabolism, Neurodegenerative Diseases, Peroxidations, Phosphorylations, Prebiotics, Probiotics, Reductions, Transcription, Transduction, Vitamins

GC Analysis of Amino Acids (as TBDMS Derivatives) on SLB®-5ms (20 m x 0.18 mm I.D., 0.18 μm), Fast GC Analysis

From our library of Articles, Sigma-Aldrich presents GC Analysis of Amino Acids (as TBDMS Derivatives) on SLB®-5ms (20 m x 0.18 mm I.D., 0.18 μm), Fast GC Analysis
Keywords: Chromatography, Gas chromatography, Purification

HPLC Analysis of Cysteine Enantiomers on Astec® CHIROBIOTIC® T (Formic Acid Mobile Phase Additive)

From our library of Articles, Sigma-Aldrich presents HPLC Analysis of Cysteine Enantiomers on Astec® CHIROBIOTIC® T (Formic Acid Mobile Phase Additive)
Keywords: Chromatography, High performance liquid chromatography

Peer-Reviewed Papers
15

References

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