[{"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]"}, {"from": "gpt", "value": "The molecule has also been proposed as a radiation sensitizer for hypoxic cells. According to the Fourth Annual Report on Carcinogens (NTP 85-002, 1985) this substance may reasonably be anticipated to be a carcinogen."}]