[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule appears as a whitish colored solid in the form of flakes. It will form a corrosive solution in water. Denser than water. Severely irritates skin and eyes. Used to make other chemicals."}, {"from": "gpt", "value": "[C][=C][C][=C][Branch1][N][C][=Branch1][Ring2][=C][Ring1][=Branch1][N+1][=Branch1][C][=O][O-1][S][=Branch1][C][=O][=Branch1][C][=O][O]"}]