The SMILES Nc1nc(N)nc(CCCc2nc(N)nc(N)n2)n1 is not a human ether-à-go-go related gene (hERG) blocker.
The {#molecule |!}{SMILES__description} {SMILES#} is {herg_blocker#not &NULL}a {herg_blocker__names__noun}.
6-[3-(4,6-diamino-1,3,5-triazin-2-yl)propyl]-1,3,5-triazine-2,4-diamine