The molecule with the SMILES O=C1NCc2ccc(OCCCCN3CCN(c4cccc5ccccc45)CC3)cc21 is a hERG blocker (<10uM).
The molecule with the {SMILES__description} {#representation of |!}{SMILES#} is {herg_blocker#not a hERG blocker (>= 10uM)&a hERG blocker (<10uM)}.
6-[4-(4-naphthalen-1-ylpiperazin-1-yl)butoxy]-2,3-dihydroisoindol-1-one