Based on the SMILES Nc1nnc(-c2cccc(Cl)c2Cl)c(N)n1, the molecule is not a hERG blocker.
Based on the {SMILES__description} {#representation |!}{SMILES#}, the molecule is {herg_blocker#not &NULL}a {herg_blocker__names__noun}.
6-(2,3-dichlorocyclohexa-1,3,5-trien-1-yl)-1,2,4-triazine-3,5-diamine