The molecule SMILES CCCCN1CC(=O)N2Cc3[nH]c4ccccc4c3C[C@H]2C1=O is not a hERG blocking compound (IC50 < 10uM).
The {#molecule |!}{SMILES__description} {SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.