Cysteine (data page)

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The complete data for Cysteine

General information

Chemical formula: C3H7NO2S 
Molar mass: 121.16 g·mol-1
Systematic name:
(2R)-2-amino-3-sulfanyl-propanoic acid
Abbreviations: C, Cys
Synonyms:
2-amino-3-mercaptopropanoic acid
2-amino-3-mercaptopropionic acid
2-amino-3-sulfanylpropanoic acid
3-mercaptoalanine
AIDS{-}160777
CHEBI:15356
CHEMBANK2703
NSC 63864
NSC647530
NSC8746
Zystein
Database data
SMILES: SCC(N)C(=O)O
InChI=1/C3H7NO2S/c4-2(1-7)3(5)6/h2,7H,1,4H2,(H,5,6)/f/h5H
 ATC: N/A CAS: [52-90-4] a DrugBank: N/A EINECS: 200-158-2 PubChem: 5862
Physical properties
Structure
Crystal data
Spectral data
UV-Vis
IR
NMR
MS
Phase behavior
Solid properties
Tm: 240 °C
Liquid properties
Gas properties
Hazard properties
MSDS N/AMain hazards:
- N/A
NFPA 704
0
0
0
Flash point
- N/A
 R/S statement
R: N/A
S: N/A
RTECS number:
N/A
Chemical properties
XLogP: -2.988pI: 5.07pKa: 1.91; 8.14; 10.28Tautomers: Hydrogen bond: donor - 2;  acceptor - 3
Pharmacological properties
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)

References

  1. ^a [52-90-4]
General topics
By properties
Polar, uncharged
Positive charge (pKa)
Negative charge (pKa)
Other classifications
  • Biochemical families: carbohydrates
    • alcohols
    • glycoproteins
    • glycosides
  • lipids
    • eicosanoids
    • fatty acids / intermediates
    • phospholipids
    • sphingolipids
    • steroids
  • nucleic acids
    • constituents / intermediates
  • proteins
    • Amino acids / intermediates
  • tetrapyrroles / intermediates
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