[{"from": "human", "value": "Describe this molecule. [C][C][N+1][Branch1][C][C][Branch1][Ring1][C][C][C][C][O][C][=Branch1][C][=O][C][C][=C][C][=C][C][=C][Ring1][=Branch1][O][C][=C][C][=C][C][=C][Ring1][=C][Ring1][=Branch1].[Br-1]"}, {"from": "gpt", "value": "The molecule is a member of xanthenes."}]