The molecule with the SMILES representation of O=c1c2c(nc3c(-c4ccc(Cl)cc4)c[nH]n13)CCCC2 is not a hERG blocking compound (IC50 < 10uM).
The molecule with the {SMILES__description} {#representation of |!}{SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.