[{"from": "human", "value": "Describe this molecule. [C][C][=N][C][=C][Branch1][#Branch1][N][Ring1][Branch1][C][C][O][N+1][=Branch1][C][=O][O-1].[Cl]"}, {"from": "gpt", "value": "The molecule is the hydrochloride salt of a synthetic nitroimidazole derivative with antiprotozoal and antibacterial activities. Although its mechanism of action is not fully elucidated, un-ionized metronidazole is readily taken up by obligate anaerobic organisms and is subsequently reduced by low-redox potential electron-transport proteins to an active, intermediate product. Reduced metronidazole causes DNA strand breaks, thereby inhibiting DNA synthesis and bacterial cell growth."}]