[N-]=[N+]=Nc1ccc(S(=O)(=O)Oc2cc(OS(=O)(=O)c3ccc(N=[N+]=[N-])cc3)cc(OS(=O)(=O)c3ccc(N=[N+]=[N-])cc3)c2)cc1
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 distribution coefficient of this molecule?