The SMILES CCCCNC(=O)N1CCC(CCC(=O)N(C)Cc2ccccc2)CC1 is not a hERG blocking compound (IC50 < 10uM).
The {#molecule |!}{SMILES__description} {SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.