The SMILES O=C1CN(/N=C/c2ccc([N+](=O)[O-])o2)C(=O)N1 represents a molecule that is not identified as clinically toxic.
The {SMILES__description} {SMILES#} {#represents|is from!} a molecule that is {clinical_toxicity#not &NULL}identified as {clinical_toxicity__names__adjective}.
1-[(E)-(5-nitrofuran-2-yl)methylideneamino]imidazolidine-2,4-dione