COc1ccc(-c2cc(=O)c3c(O)cc(OC4OC(COC5OC(C)C(O)C(O)C5O)C(O)C(O)C4O)cc3o2)cc1O
The distribution coefficient (Log D) is important for the analysis of the drug candidate properties in various biologic media with different pH values. What is the negative log D of this molecule?