The SMILES O=c1n(CCCN2CCN(c3cccc(Cl)c3)CC2)nc2ccccn12 is from a molecule that is a hERG blocker.
The {SMILES__description} {SMILES#} {#represents|is from!} a molecule that is {herg_blocker#not &NULL}a {herg_blocker__names__noun}.
2-[3-[4-(3-chlorophenyl)piperazin-1-yl]propyl]-[1,2,4]triazolo[4,3-a]pyridin-3-one