User: I'm looking for the SMILES of a molecule that can be described as:
The molecule is a zwitterion resulting from the transfer of a proton from the carboxy group to the amino group of N-[(2S)-2-aminobutanoyl]glycine. The major species at pH 7.3. It is a tautomer of a N-[(2S)-2-aminobutanoyl]glycine.
Assistant: This is a molecule that fits this description: CC[C@H]([NH3+])C(=O)NCC(=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#}
CC[C@H]([NH3+])C(=O)NCC(=O)[O-]
CC[C@@H](C(=O)NCC(=O)[O-])[NH3+]
2-[[(2S)-2-azaniumylbutanoyl]amino]acetate
The molecule is a zwitterion resulting from the transfer of a proton from the carboxy group to the amino group of N-[(2S)-2-aminobutanoyl]glycine. The major species at pH 7.3. It is a tautomer of a N-[(2S)-2-aminobutanoyl]glycine.