[{"from": "human", "value": "Could you provide a description of this molecule? [C][=C][Branch2][Branch1][=Branch1][C][=C][Branch2][Ring2][S][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][C][=Branch1][C][=O][C][=Branch1][Branch1][=C][Ring1][Branch2][O-1][C][=C][Branch2][Ring1][#Branch1][C][=C][Branch1][O][C][=C][Branch1][=Branch1][C][=C][Ring1][=Branch1][O][O][C][=Branch1][C][=O][C][Ring1][=N][=O][O-1][O][O]"}, {"from": "gpt", "value": "The molecule is dianion of 3,3'-biflaviolin arising from selective deprotonation of the OH groups at the 2- and 2'-positions. It is a conjugate base of a 3,3'-biflaviolin. It is a conjugate acid of a 3,3'-biflaviolin(3-)."}]