[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][N][Branch1][C][C][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][=Branch1][S][=C][C][=C][C][=Branch1][=Branch1][=N+1][Branch1][C][C][C][C][=C][Ring1][=Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1].[Cl-1]"}, {"from": "gpt", "value": "The molecule appears as green crystals with metallic luster. Water solutions are blue-green. Used in dyeing silk, wool, biological staining, etc."}]