The SMILES O=C1OCc2cc(CCN3CCN(CCc4ccc([N+](=O)[O-])cc4)CC3)ccc21 is from a molecule that is a hERG blocker (<10uM).
The {SMILES__description} {SMILES#} {#represents|is from!} a molecule that is {herg_blocker#not a hERG blocker (>= 10uM)&a hERG blocker (<10uM)}.
5-[2-[4-[2-(4-nitrophenyl)ethyl]piperazin-1-yl]ethyl]-3H-2-benzofuran-1-one