[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][C][=Branch1][C][=O][C][C@@H1][Branch1][=Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=C][Branch1][=C][C][=C][C][=C][C][=C][Ring1][=Branch1][O][C][Ring1][#Branch2][=O][O-1].[K+1]"}, {"from": "gpt", "value": "The molecule is an organic potassium salt having 2-oxo-3-[(1S)-3-oxo-1-phenylbutyl]-2H-1-benzopyran-4-olate as the counterion (the racemate is warfarin potassium, an anticoagulant drug and rodenticide). It contains a (S)-warfarin(1-). It is an enantiomer of a (R)-warfarin potassium."}]