User: I'm searching for the SMILES of a molecule that can be described as:
The molecule is a dizwitterionic form of 2-(3-amino-3-carboxypropyl)-L-histidine arising from transfer of two protons from the carboxy to the amino groups; major species at pH 7.3. It is a tautomer of a 2-(3-amino-3-carboxypropyl)-L-histidine.
Assistant: This is a molecule that fits this description: [NH3+]C(CCc1ncc(C[C@H]([NH3+])C(=O)[O-])[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#}
2-azaniumyl-4-[5-[(2S)-2-azaniumyl-2-carboxylatoethyl]-1H-imidazol-2-yl]butanoate
The molecule is a dizwitterionic form of 2-(3-amino-3-carboxypropyl)-L-histidine arising from transfer of two protons from the carboxy to the amino groups; major species at pH 7.3. It is a tautomer of a 2-(3-amino-3-carboxypropyl)-L-histidine.