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W326305 Aldrich

L-Cysteine

≥97%, FG

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

  • CAS Number 52-90-4

  • Linear Formula HSCH2CH(NH2)CO2H

  • Molecular Weight 121.16

  •  FEMA Number 3263

  •  Beilstein Registry Number 1721408

  •  EC Number 200-158-2

  •  MDL number MFCD00064306

  •  eCl@ss 32160406

  •  PubChem Substance ID 24901592

  •  Flavis number 17.033

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Properties

Related Categories A - D, Alphabetical Listings, C-D, Certified Food Grade Products, Flavors and Fragrances,
biological source   duck feathers
grade   FG
  Halal
reg. compliance   FDA 21 CFR (172.320)
  FDA 21 CFR (184.1271)
  EU Regulation 1334/2008 & 872/2012
InChI Key   XUJNEKJLAYXESH-REOHCLBHSA-N
assay   ≥97%
optical activity   [α]26/D +8.0 to +9.5°, c = 2 in 5 M HCl
mp   240 °C (dec.)(lit.)
solubility   H2O: 25 mg/mL
Documentation   see Safety & Documentation for available documents
Organoleptic   sulfurous

Description

Biochem/physiol Actions

NMDA glutamatergic receptor agonist.

Packaging

1 kg in poly bottle

100 g in poly bottle

5 kg in fiber drum

General description

L-cysteine is a sulfur-containing amino acid. It can undergo Maillard reaction with reducing sugars to form volatile meat flavored compounds.

Other Notes

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Safety & Documentation

Safety Information

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

Same Products - New Packaging

New F&F Product Supplement
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

Related Content

Flavors and Fragrances Quality and Regulatory

From a comprehensive vendor approval process, to the testing of raw material at receipt as well as when product is ready to be shipped; we prove our dedication to supply chain transparency, every day.
Keywords: Allergens, Food Safety, Solvents

Peer-Reviewed Papers
15

References

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