O=[N+]([O-])c1ccc(N2CCC(CCCC3CCN(c4ccc([N+](=O)[O-])cc4[N+](=O)[O-])CC3)CC2)c([N+](=O)[O-])c1
A negative logP value indicates preferential solubility in water and a positive value indicates an affinity for octanol. What is the negative logP of this molecule?