L-Cysteine CAS: 52-90-4
MF: C3H7NO2S
MW: 121.16
A non-essential amino acid.

L-Cysteine (CAS 52-90-4)

L-Cysteine | CAS 52-90-4 is rated 5.0 out of 5 by 1.
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Alternate Names: (R)-2-Amino-3-mercaptopropionic acid
Application: L-Cysteine is a non-essential amino acid
CAS Number: 52-90-4
Purity: ≥98%
Molecular Weight: 121.16
Molecular Formula: C3H7NO2S
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data (including water content).

L-Cysteine is a naturally-occurring non-essential amino acid. L-Cysteine is an activator of NMDA.

Appearance :
Crystalline powder
Physical State :
Solid
Solubility :
Soluble in water (10 mg/ml), 1N HCl (50 mg/ml), and ethanol.
Storage :
Store at 4° C
Melting Point :
240° C (dec.)
Boiling Point :
254° C
Density :
1.68 g/cm3
Refractive Index :
n20D 1.55 (Predicted)
Optical Activity :
α20/D 7.9°, c = 5 in 5N HCl
IC50 :
Kinesin-like protein 1: IC50 = >63 µM (Homo sapiens); Cystine/glutamate transporter: IC50 = 116 µM (Homo sapiens); HeLa (Cervical adenocarcinoma cells): IC50 = >50 µM (human)
Ki Data :
Cystine/glutamate transporter: Ki= 59 µM (Homo sapiens); Proton-coupled amino acid transporter 1: Ki= 46000 µM (Homo sapiens); Carboxypeptidase A1: Ki= 350 µM (Bos taurus)
pK Values :
pKa: 2.07, pKb: 11.05
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
WGK Germany :
1
RTECS :
HA1600000
PubChem CID :
5862
Merck Index :
14: 2781
MDL Number :
MFCD00064306
EC Number :
200-158-2
Beilstein Registry :
1721408
SMILES :
C([[email protected]@H](C(=O)O)N)S

Download SDS (MSDS)

Certificate of Analysis

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Rated 5 out of 5 by from Various publications cite the use of L Various publications cite the use of L-Cysteine as it is a very popular target for site-directed labeling experiments to investigate biomolecular structure and dynamics. -SCBT Publication Review
Date published: 2015-04-03
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