[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is an organic salt, being the disodium salt of 2,2'-piperazine-1,4-diylbisethanesulfonic acid (PIPES), a buffering agent. It has a role as a buffer. It contains a 2,2'-piperazine-1,4-diylbisethanesulfonate."}, {"from": "gpt", "value": "[C][C][N][Branch1][S][C][C][N][Ring1][=Branch1][C][C][S][=Branch1][C][=O][=Branch1][C][=O][O-1][C][C][S][=Branch1][C][=O][=Branch1][C][=O][O-1].[Na+1].[Na+1]"}]