[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is an acetate salt resulting from the reaction of equimolar amounts of tris and acetic acid. It has a role as a buffer. It contains a member of Htris."}, {"from": "gpt", "value": "[C][C][=Branch1][C][=O][O].[C][Branch1][O][C][Branch1][Ring1][C][O][Branch1][Ring1][C][O][N][O]"}]