[{"from": "human", "value": "Describe this molecule. [C][=C][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][=Branch1][C][=O][C][=C][Branch1][Branch1][C][Ring1][Branch2][=O][C][=Branch2][Ring1][Ring2][=C][Branch1][=Branch2][C][=Branch1][Branch1][=C][Ring1][Branch2][N][O][S][=Branch1][C][=O][=Branch1][C][=O][O-1][O]"}, {"from": "gpt", "value": "The molecule is an organosulfonate oxoanion that is the conjugate base of nuclear fast red free acid, obtained by deprotonation of the sulfo group. It is a conjugate base of a nuclear fast red free acid."}]