The SMILES CCCn1c(C)nc2c(c1=O)c1nc3ccccc3nc1n2CCC1=CCCCC1 is not a hERG blocking compound (IC50 < 10uM).
The {#molecule |!}{SMILES__description} {SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.