O=C(CC1=Nc2nnc(CCCCCCCc3nnc4n3C(=O)C(CC(=O)c3ccccc3)=N4)n2C1=O)c1ccccc1
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?