Cysteine

C3H7NO2SCAS 3374-22-9121.15 g/mol

NH2HSOOH
Carboxylic acidPrimary amineThiol

Properties

Molecular formula
C3H7NO2S
Molar mass
121.15 g/mol
Exact mass
121.0197 Da
Melting point
222–225 °C
logP
-0.67Crippen estimate
Polar surface area
63.3 Ų
H-bond donors / acceptors
3 / 3
Rotatable bonds
2

Identifiers

CAS number
3374-22-9
SMILES
NC(CS)C(=O)O
InChIKey
XUJNEKJLAYXESH-UHFFFAOYSA-N
InChI
InChI=1S/C3H7NO2S/c4-2(1-7)3(5)6/h2,7H,1,4H2,(H,5,6)

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Type any one amount. The others follow from the molar mass.

Names and synonyms

6 names
  • Cysteine, DL-
  • DL-Cysteine
  • (±)-Cysteine
  • NSC 63864
  • (±)-2-Amino-3-mercaptopropionic acid
  • 2-Amino-3-sulfanylpropanoic acid

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Similar compounds

Tanimoto similarity of circular fingerprints over the whole catalogue. All similar compounds

Same formula

Elsewhere