[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][N][=C][C][=C][C][=NH1+1][C][=C][Branch1][#Branch2][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][N][S][C][Ring1][O][=C][Ring1][#C]"}, {"from": "gpt", "value": "The molecule is an organic cation that is phenothiazin-5-ium substituted by amino and methylamino groups at positions 3 and 7 respectively. The chloride salt is the histological dye 'azure C'."}]