[{"from": "human", "value": "What can you tell me about this molecule? [O-1][As][=Branch1][C][=O][Branch1][C][O-1][O-1].[O-1][As][=Branch1][C][=O][Branch1][C][O-1][O-1].[Ca+2].[Ca+2].[Ca+2]"}, {"from": "gpt", "value": "The molecule is a white powder. Slightly soluble in water. Toxic by inhalation and ingestion. Used as an insecticide and germicide."}]