[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule appears as a white crystalline or granular solid with a slight odor. Toxic by ingestion, inhalation, and skin absorption. Used as a herbicide."}, {"from": "gpt", "value": "[C][As][=Branch1][C][=O][Branch1][C][C][O-1].[Na+1]"}]