User: I'm searching for the SMILES of a molecule that can be described as:
The molecule is a peptide zwitterion obtained by transfer of two protons from the carboxy to the amino groups of Cys-Gly disulfide; major species at pH 7.3. It is a tautomer of a Cys-Gly disulfide.
Assistant: This is a molecule that fits your description: [NH3+]C(CSSCC([NH3+])C(=O)NCC(=O)[O-])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#}
2-[[2-azaniumyl-3-[[2-azaniumyl-3-(carboxylatomethylamino)-3-oxopropyl]disulfanyl]propanoyl]amino]acetate
The molecule is a peptide zwitterion obtained by transfer of two protons from the carboxy to the amino groups of Cys-Gly disulfide; major species at pH 7.3. It is a tautomer of a Cys-Gly disulfide.