The SMILES Nc1ccccc1.O=P(O)(OP(=O)(O)c1ccccc1)c1ccccc1 is not inhibiting CYP P450 2C9.
The {#molecule |!}{SMILES__description} {SMILES#} is {CYP2C9_inhibition#not &NULL}{CYP2C9_inhibition__names__gerund}.