O=C(Cc1csc2[n+]1C(=O)/C(=C/c1ccc(Cl)cc1)S2)Nc1ccccc1.[Br-]
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?