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Documentos

W326305

Sigma-Aldrich

L-cisteína

≥97%, FG

Sinónimos:

Ácido (R)-2-amino-3-mercaptopropiónico

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About This Item

Fórmula lineal:
HSCH2CH(NH2)CO2H
Número de CAS:
52-90-4
Peso molecular:
121.16
FEMA Number:
3263
Beilstein/REAXYS Number:
1721408
EC Number:
200-158-2
MDL number:
MFCD00064306
UNSPSC Code:
12164502
eCl@ss:
32160406
PubChem Substance ID:
24901592
Flavis number:
17.033
NACRES:
NA.21

grade

FG
Halal

Quality Level

400

reg. compliance

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

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

application(s)

flavors and fragrances

documentation

see Safety & Documentation for available documents

organoleptic

sulfurous

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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Categorías relacionadas

General description

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

Biochem/physiol Actions

Agonista del receptor glutamatérgico NMDA.

wgk_germany

WGK 1

ppe

dust mask type N95 (US), Eyeshields, Gloves

Certificados de análisis (COA)

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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)
Takeshi Annoura et al.
FASEB journal : official publication of the Federation of American Societies for Experimental Biology, 28(5), 2158-2170 (2014-02-11)
The 10 Plasmodium 6-Cys proteins have critical roles throughout parasite development and are targets for antimalaria vaccination strategies. We analyzed the conserved 6-cysteine domain of this family and show that only the last 4 positionally conserved cysteine residues are diagnostic
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
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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.

Chromatograms

application for HPLC

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