L-Cysteine

Name: <SC>L</SC>-Cysteine
Brand: ALDRICH

Wacker Chemie AG, ≥98.0%

Synonym(s):

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

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About This Item

Linear Formula:

HSCH₂CH(NH₂)CO₂H

CAS Number:

52-90-4

Molecular Weight:

121.16

UNSPSC Code:

12352209

NACRES:

NA.22

PubChem Substance ID:

329767985

EC Number:

200-158-2

Beilstein/REAXYS Number:

1721408

MDL number:

MFCD00064306

Key Documents

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Product Name

L-Cysteine, Wacker Chemie AG, ≥98.0%

InChI key

XUJNEKJLAYXESH-REOHCLBHSA-N

InChI

1S/C3H7NO2S/c4-2(1-7)3(5)6/h2,7H,1,4H2,(H,5,6)/t2-/m0/s1

SMILES string

N[C@@H](CS)C(O)=O

assay

≥98.0%

form

powder

optical activity

[α]/D 8 to 9.5°

reaction suitability

reaction type: solution phase peptide synthesis

manufacturer/tradename

Wacker Chemie AG

impurities

≤0.5% ninhidrin positive substances (each)
≤10 ppm heavy metals
≤300 ppm ammonium

ign. residue

≤0.1%

loss

≤0.5% loss on drying

mp

240 °C (dec.) (lit.)

anion traces

chloride (Cl^-): ≤0.04%
sulfate (SO₄^2-): ≤0.03%

cation traces

Fe: ≤10 ppm

suitability

clear, colorless for appearance of solution

Quality Level

100

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Thiols

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Show Differences

1 of 4

This Item	168149	C7352	C5360
Sigma-Aldrich 778672 L-Cysteine	Sigma-Aldrich 168149 L-Cysteine	Sigma-Aldrich C7352 L-Cysteine	SAFC C5360 L-Cysteine
assay ≥98.0%	assay 97%	assay ≥98%	assay -
Quality Level 100	Quality Level 200	Quality Level 200	Quality Level 400
reaction suitability reaction type: solution phase peptide synthesis	reaction suitability reaction type: solution phase peptide synthesis	reaction suitability -	reaction suitability -
form powder	form solid	form crystalline powder	form crystalline powder
mp 240 °C (dec.) (lit.)	mp 240 °C (dec.) (lit.)	mp 240 °C (dec.) (lit.)	mp 240 °C (dec.) (lit.)
grade produced by Wacker Chemie AG, Burghausen, Germany	grade -	grade -	grade -

Application

L-Cysteine has been used as a standard for the quantification of low-molecular-weight (LMW) thiols extracted from Arabidopsis thaliana tissues by HPLC.[1]

Biochem/physiol Actions

NMDA glutamatergic receptor agonist.

General description

This product is supplied from Wacker FERMOPURE^® material, but only sold for R&D use only, not for drug, household or other uses.

Legal Information

FERMOPURE is a registered trademark of Wacker Chemie AG

Storage Class

13 - Non Combustible Solids

wgk

WGK 1

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Quantification of Low Molecular Weight Thiols in Arabidopsis.

Miao Z, et al.

Journal of integrative plant biology (2015)

Targeting transcription regulation in cancer with a covalent CDK7 inhibitor.

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

Increase in the protein-bound form of glutathione in human blood after the oral administration of glutathione.

Eun Young Park et al.

Journal of agricultural and food chemistry, 62(26), 6183-6189 (2014-06-01)

The present study examined the impact of the supplementation of glutathione (GSH), γ-L-glutamyl-L-cysteinyl-glycine, on human blood GSH levels. Healthy human volunteers were orally supplemented with GSH (50 mg/kg body weight). Venous blood was collected from the cubital vein before and

Two Plasmodium 6-Cys family-related proteins have distinct and critical roles in liver-stage development.

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

Feeling unreal: a functional imaging study in patients with Kleine-Levin syndrome.

Aurelie Kas et al.

Brain : a journal of neurology, 137(Pt 7), 2077-2087 (2014-05-03)

Kleine-Levin syndrome is characterized by relapsing-remitting episodes of severe hypersomnia, cognitive impairment, apathy, derealization and behavioural disturbances. Between episodes, patients have normal sleep, mood and behaviour. Functional imaging studies performed in small series of patients with Kleine-Levin syndrome with visual

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