CCCCC(=O)OC[n+]1ccc(-c2c(COC(=O)NC(C)C)c(COC(=O)NC(C)C)c3n2CCC3)cc1.[I-]
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?