[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a platinum(II) porphyrin compound having a 2-keto group and eight ethyl substituents in the 3-, 3-, 7-, 8-, 12-, 13-, 17- and 18-positions. It has a role as a fluorochrome."}, {"from": "gpt", "value": "[C][C][C][=C][Branch2][=Branch1][#Branch1][C][=C][C][=N][C][=Branch2][Ring2][P][=C][C][=C][Branch2][Ring2][=Branch2][C][=Branch2][Ring2][Ring1][=C][Branch1][Ring2][N-1][Ring1][Branch1][C][=C][C][=Branch2][Ring1][Branch1][=C][Branch1][S][C][=Branch1][Ring2][=N][Ring1][Branch1][C][=C][Ring2][Ring1][Branch1][N-1][Ring2][Ring1][Ring2][C][C][C][C][C][C][C][C][C][Branch1][=Branch1][C][Ring2][Ring1][N][=O][Branch1][Ring1][C][C][C][C][C][C].[Pt+2]"}]