The SMILES O=C(CSc1nnc2scc(-c3ccccc3)n12)NCc1ccc2c(c1)OCO2 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}.