The molecule SMILES Nc1ccc2nc(CCCCCCCCc3nc4ccc(N)cc4[nH]3)[nH]c2c1 is not a hERG blocking compound (IC50 less than 10uM).
The {#molecule |!}{SMILES__description} {SMILES#} is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.