User: I'm looking for the SMILES of a molecule that can be described as:
The molecule is a Good's buffer substance, pKa = 6.9 at 20 ℃. It is an ACES and an amino sulfonic acid. It is a tautomer of a 2-[(2-amino-2-oxoethyl)ammonio]ethanesulfonate.
Assistant: This is a molecule that fits your description: NC(=O)CNCCS(=O)(=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#}
NC(=O)CNCCS(=O)(=O)O
C(CS(=O)(=O)O)NCC(=O)N
2-[(2-amino-2-oxoethyl)amino]ethanesulfonicacid
The molecule is a Good's buffer substance, pKa = 6.9 at 20 ℃. It is an ACES and an amino sulfonic acid. It is a tautomer of a 2-[(2-amino-2-oxoethyl)ammonio]ethanesulfonate.