Based on the SMILES representation O=P1(O)C=C(c2ccccc2)OC(c2ccccc2)=C1, the molecule is not a hERG blocking compound (IC50 less than 10uM).
Based on the {SMILES__description} {#representation |!}{SMILES#}, the molecule is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.