The molecule with the SMILES O=c1oc2ccccc2c(O)c1Cc1c(O)c2ccccc2oc1=O is not a CYP2D6 substrate.
The molecule with the {SMILES__description} {#representation of |!}{SMILES#} is {CYP2D6_Substrate#not &NULL}a {CYP2D6_Substrate__names__noun}.
4-hydroxy-3-[(4-hydroxy-2-oxochromen-3-yl)methyl]chromen-2-one