[{"from": "human", "value": "What can you tell me about this molecule? [C][C][N][Branch1][O][C][=Branch1][C][=N][N][N+1][=Branch1][C][=O][O-1][N][=O]"}, {"from": "gpt", "value": "The molecule is an alkyl nitrosoguanidine with carcinogenic properties.  Used to induce cancer in experimental animal models, N-ethyl-N'-nitro-N-nitrosoguanidine ethylates DNA, resulting in single- and double-stranded DNA breaks and the inhibition of DNA replication. (NCI04)"}]