[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is a citrate salt in which two of the three carboxy groups are deprotonated and associated with ammonium ions as counter-cations. It has a role as a buffer. It is an ammonium salt and a citrate salt."}, {"from": "gpt", "value": "[C][Branch1][=Branch1][C][=Branch1][C][=O][O-1][C][Branch1][#Branch1][C][C][=Branch1][C][=O][O-1][Branch1][=Branch1][C][=Branch1][C][=O][O][O].[NH4+1].[NH4+1]"}]