The SMILES Nc1[nH]c(SCC(=O)O)nc(=O)c1N is not a hERG blocker.
The {#molecule |!}{SMILES__description} {SMILES#} is {herg_blocker#not &NULL}a {herg_blocker__names__noun}.
2-[[5,6-bis(azanyl)-4-oxidanylidene-1H-pyrimidin-2-yl]sulfanyl]ethanoicacid