O=C1O[C@H]2[C@H](O)[C@@H](OC(=O)c3cc(O)c(O)c4c3[C@@H]3C1=CC(=O)C(O)(O)C3(O)O4)[C@H](OC(=O)c1cc(O)c(O)c(O)c1)O[C@@H]2CO
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?