The SMILES O=C1c2ccccc2-c2c1nc1c([n+]2[O-])CCCC1 is from a molecule that is not a hERG blocking compound (IC50 less than 10uM).
The {SMILES__description} {SMILES#} {#represents|is from!} a molecule that is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.