[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][Branch1][#Branch2][C][S][=Branch1][C][=O][=Branch1][C][=O][O][N][C][C][=Branch1][C][=O][N]"}, {"from": "gpt", "value": "The molecule is a Good's buffer substance, pKa = 6.9 at 20 \u2103. It is an ACES and an amino sulfonic acid. It is a tautomer of a 2-[(2-amino-2-oxoethyl)ammonio]ethanesulfonate."}]