[{"from": "human", "value": "Provide a description of this molecule. [C][C][=C][Branch2][Ring1][=N][S][C][=Branch1][Ring2][=N][Ring1][Branch1][C][=C][C][=Branch1][#C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][C][C][Branch1][C][C][C][C][#N][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a newly introduced nonpurine xanthine oxidase inhibitor used for the treatment of gout. Chronic febuxostat therapy has been associated with minor serum aminotransferase elevations, but has yet to be linked to cases of clinically apparent acute liver injury."}]