User: I'm looking for the SMILES of a molecule that can be described as:
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.
Assistant: This is a molecule that fits your description: C[C@H](NC(=O)[C@@H]([NH3+])Cc1cnc[nH]1)C(=O)[O-]
User: I'm {#searching|looking!} for the {SMILES__description} of a molecule that can be described {#by|as!}:
{description#}
Assistant: This is a molecule that fits {#your|this!} description: {SMILES#}
C[C@H](NC(=O)[C@@H]([NH3+])Cc1cnc[nH]1)C(=O)[O-]
(2S)-2-[[(2S)-2-azaniumyl-3-(1H-imidazol-5-yl)propanoyl]amino]propanoate
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.