[{"from": "human", "value": "What can you tell me about this molecule? [C][C][C][C][C][C][C][N][Branch1][Ring1][C][C][C][C][C][C][Branch2][Ring1][Ring2][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][N][S][=Branch1][C][=O][=Branch1][C][=O][C][O]"}, {"from": "gpt", "value": "The molecule is a Class III antiarrhythmic agent available in intravenous formulations. It is indicated for the conversion of acute atrial flutter and recent onset atrial fibrillation to normal sinus rhythm (NSR)."}]