SMILES: C1=CC=C2C(=C1)C(=CN2)C(C#N)SC[C@@H](C(=O)NCC(=O)[O-])[NH3+]
Description: The molecule is a dipeptide zwitterion resulting from transfer of a proton from the carboxy to the amino group of Cys(IAN)-Gly; major species at pH 7.3. It is a tautomer of a Cys(IAN)-Gly.