The SMILES C#CCNC(=O)C1CCN(c2cc(C)nc(-c3ccccc3)n2)CC1 is not a hERG blocking compound (IC50 < 10uM).
The {#molecule |!}{SMILES__description} {SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.