CC(/C=C1\SC(=S)N(CCCC(=O)Nc2ccc(C(=O)O)cc2)C1=O)=C\c1ccccc1
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 the negative log D of this molecule?