SMILES: C([C@@H](C(=O)[O-])[NH3+])S
Description: The molecule is a cysteine zwitterion. It is a conjugate base of a L-cysteinium. It is a conjugate acid of a L-cysteinate(1-). It is an enantiomer of a D-cysteine zwitterion. It is a tautomer of a L-cysteine.