[{"from": "human", "value": "What can you tell me about this molecule? [C][C][N+1][=Branch2][Ring1][P][=C][C][=C][C][=N][C][=C][Branch1][S][C][=C][Branch1][O][C][=C][C][=C][C][=C][Ring1][=Branch1][Ring1][#Branch2][N][O][C][Ring1][#C][=C][Ring2][Ring1][Ring1][C][C]"}, {"from": "gpt", "value": "The molecule is an organic cation that is 6a,12a-dihydrobenzo[a]phenoxazin-7-ium substituted by amino and dimethylamino groups at positions 5 and 9 respectively. The chloride salt is the histological dye 'nile blue A'"}]