[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is an ammonium salt composed of ammonium and molybdate ions in a 2:1 ratio. It has a role as a poison. It contains a molybdate."}, {"from": "gpt", "value": "[NH4+1].[NH4+1].[O-1][Mo][=Branch1][C][=O][=Branch1][C][=O][O-1]"}]