O=[N+]([O-])c1ccc2c(c1)/C(=N/N=C1/c3cc([N+](=O)[O-])ccc3-c3c1cc([N+](=O)[O-])cc3[N+](=O)[O-])c1cc([N+](=O)[O-])cc([N+](=O)[O-])c1-2
A negative log P value indicates preferential solubility in water and a positive value indicates an affinity for octanol. What is the negative log P of this molecule?