[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a white powder. Toxic by inhalation and ingestion."}, {"from": "gpt", "value": "[O-1][As][=Branch1][C][=O][Branch1][C][O-1][O-1].[O-1][As][=Branch1][C][=O][Branch1][C][O-1][O-1].[Zn+2].[Zn+2].[Zn+2]"}]