[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][Branch1][Ring1][C][O][N][Branch1][Ring2][C][C][O][C][Branch1][Ring1][C][O][Branch1][Ring1][C][O][C][O]"}, {"from": "gpt", "value": "The molecule is a buffer substance useful for calibration of glass electrodes and for the preparation of the biochemical and biological buffer solutions; pKa = 6.46 at 25 \u2103. It has a role as a buffer. It is functionally related to a member of tris."}]