Task: Please create a molecule SMILES based on the description below.
Description: A molecule that is a hERG blocking compound (<10uM).
Result: O=C1OC2(c3cc(Br)c(O)c(Br)c3Oc3c2cc(Br)c(O)c3Br)c2c(Cl)c(Cl)c(Cl)c(Cl)c21
Task: Please {#give me|create|generate!} a {#molecule |!}{SMILES__description} based on the {#text |!}description{# below|!}.
Description: A molecule that is a {herg_blocker__names__noun}.
Result: {SMILES#}
2',4',5',7'-tetrabromo-4,5,6,7-tetrachloro-3',6'-dihydroxyspiro[2-benzofuran-3,9'-xanthene]-1-one