Cc1n[nH]c(S/C(=C\c2ccc(-c3ccc(C(=O)O)c(Cl)c3)o2)C(=O)O)n1
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?