[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a white crystalline solid. Sinks in water and dissolves. Odorless. Highly toxic by inhalation and ingestion."}, {"from": "gpt", "value": "[Be+2].[O].[O].[O].[O].[O-1][S][=Branch1][C][=O][=Branch1][C][=O][O-1]"}]