The molecule with the SMILES O=C1NC(=O)C(Cc2coc3ccc(Cl)cc3c2=O)S1 is a hERG blocker (<10uM).
The molecule with the {SMILES__description} {#representation of |!}{SMILES#} is {herg_blocker#not a hERG blocker (>= 10uM)&a hERG blocker (<10uM)}.
5-[(6-chloro-4-oxochromen-3-yl)methyl]-1,3-thiazolidine-2,4-dione