[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule appears as a white to light-colored crystalline solid. Insoluble in water and denser than water. Contact may irritate skin, eyes and mucous membranes. May be toxic by ingestion. Used to make other chemicals."}, {"from": "gpt", "value": "[C][C][O][C][=C][Branch1][O][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][N+1][#N][N][Branch1][C][C][C][C][=C][C][=C][C][=C][Ring1][=Branch1].[C][C][O][C][=C][Branch1][O][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][N+1][#N][N][Branch1][C][C][C][C][=C][C][=C][C][=C][Ring1][=Branch1].[Cl-1].[Cl-1].[Cl-1].[Cl-1].[Zn+2]"}]