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W326305

Sigma-Aldrich

L-Cysteine

≥97%, FG

Sinónimos:
(R)-2-Amino-3-mercaptopropionic acid
Fórmula lineal:
HSCH2CH(NH2)CO2H
Número de CAS:
Peso molecular:
121.16
Número de FEMA:
3263
Beilstein:
1721408
Número de EC:
Número MDL:
eCl@ss:
32160406
ID de la sustancia en PubChem:
Número Flavis:
17.033
NACRES:
NA.21

Nivel de calidad

400

grado

FG
Halal

reg. compliance

EU Regulation 1334/2008 & 872/2012
FDA 21 CFR 172.320
FDA 21 CFR 184.1271

ensayo

≥97%

actividad óptica

[α]26/D +8.0 to +9.5°, c = 2 in 5 M HCl

mp

240 °C (dec.) (lit.)

solubilidad

H2O: 25 mg/mL

Documentación

see Safety & Documentation for available documents

Organoléptico

sulfurous

application(s)

flavors and fragrances

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

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Descripción general

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

Envase

100 g in poly bottle
5 kg in fiber drum
1 kg in poly bottle

Acciones bioquímicas o fisiológicas

NMDA glutamatergic receptor agonist.

Código de clase de almacenamiento

13 - Non Combustible Solids

WGK

WGK 1

Equipo de protección personal

dust mask type N95 (US), Eyeshields, Gloves

Certificado de Análisis

Certificado de origen

Volatile compounds produced by the reaction of L-cysteine or L-cystine with carbonyl compounds.
Kato S, et al.
Agricultural and Biological Chemistry, 37(3), 539-544 (1973)
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
Georg K A Hochberg et al.
Proceedings of the National Academy of Sciences of the United States of America, 111(16), E1562-E1570 (2014-04-09)
Mammalian small heat-shock proteins (sHSPs) are molecular chaperones that form polydisperse and dynamic complexes with target proteins, serving as a first line of defense in preventing their aggregation into either amorphous deposits or amyloid fibrils. Their apparently broad target specificity
Nicholas Kwiatkowski et al.
Nature, 511(7511), 616-620 (2014-07-22)
Tumour oncogenes include transcription factors that co-opt the general transcriptional machinery to sustain the oncogenic state, but direct pharmacological inhibition of transcription factors has so far proven difficult. However, the transcriptional machinery contains various enzymatic cofactors that can be targeted

Artículos

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.

Protocolos

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

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

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