CC(C)[N+]([O-])(CCCNc1c2ccccc2nc2cccc([N+](=O)[O-])c12)C(C)C.CS(=O)(=O)O
Molecules with a polar surface area of greater than 140 angstroms squared (Å2) tend to be poor at permeating cell membranes. What's the psa of this molecule?