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Merck

C2196

L-Cysteine S-sulfate

≥98% (TLC), suitable for ligand binding assays

Synonym(s):

S-Sulfo-L-cysteine

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About This Item

Empirical Formula (Hill Notation):
C3H7NO5S2
CAS Number:
Molecular Weight:
201.22
NACRES:
NA.26
PubChem Substance ID:
UNSPSC Code:
12352209
MDL number:
Beilstein/REAXYS Number:
1726832
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Product Name

L-Cysteine S-sulfate, ≥98% (TLC)

Quality Level

assay

≥98% (TLC)

form

powder

technique(s)

ligand binding assay: suitable

color

white

storage temp.

−20°C

SMILES string

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

InChI

1S/C3H7NO5S2/c4-2(3(5)6)1-10-11(7,8)9/h2H,1,4H2,(H,5,6)(H,7,8,9)/t2-/m0/s1

InChI key

NOKPBJYHPHHWAN-REOHCLBHSA-N

Biochem/physiol Actions

L-Cysteine S-sulfate (LCSS) is used as an NMDA glutamatergic receptor agonist. It serves as a substrate for cystine lyase(s).
Cysteine is one of the functional amino acids that are associated with growth, reproduction, maintenance and immunity. Cysteine is a source of disulfide linkage in protein and is associated with sulfur transport. At physiological pH, cysteine undergoes rapid oxidation to form cystine. Reduced availability of cysteine or cystine, influences leukocyte metabolism. L-Cysteine serves as a precursor for the rate limiting step in glutathione synthesis that occurs in neurons. It donates inorganic sulfate for detoxification reactions. Therefore, L-cysteine might be associated with neuroprotection. It is found to obstruct the entry of heavy metal ions across the blood-brain barrier into the brain. Increased levels of L-cysteine might lead to neurotoxicity.


pictograms

Exclamation mark

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves



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Mechanisms of L-Cysteine Neurotoxicity
R. Janaky
Neurochemical Research, 25, 1397-1405 (2000)
Cecilia Gotor et al.
Plant signaling & behavior, 5(8), 1028-1030 (2010-08-12)
The cysteine molecule plays an essential role in cells because it is part of proteins and because it functions as a reduced sulfur donor molecule. In addition, the cysteine molecule may also play a role in the redox signaling of
Claus Jacob et al.
Angewandte Chemie (International ed. in English), 42(39), 4742-4758 (2003-10-17)
Sulfur and selenium occur in proteins as constituents of the amino acids cysteine, methionine, selenocysteine, and selenomethionine. Recent research underscores that these amino acids are truly exceptional. Their redox activity under physiological conditions allows an amazing variety of posttranslational protein



Global Trade Item Number

SKUGTIN
C2196-25MG04061832422947
C2196-5MG04061832422954