SMILES: C[C@@H](C(=O)[O-])NC(=O)[C@H](CC1=CN=CN1)[NH3+]
Description: The molecule is a dipeptide zwitterion obtained by transfer of a proton from the carboxy to the amino terminus of His-Ala. Major species at pH 7.3. It has a role as a metabolite. It is a tautomer of a His-Ala.