The molecule with the SMILES representation of CCCCCc1c(C)nc(Nc2ccc(F)cc2)[nH]c1=O is not a hERG blocking compound (IC50 less than 10uM).
The molecule with the {SMILES__description} {#representation of |!}{SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.