COc1ccc(NC(S)=NNc2ccc(S(=O)(=O)Nc3ccccc3C(=O)O)cc2[N+](=O)[O-])cc1
For non-ionizable compounds Log P = Log D throughout pH range, whereas for ionizable compounds Log D takes into account the partition of both ionized and non-ionized forms.  What is log D of this molecule?