CC(C)(C)c1ccc(OCCOCCOc2ccc(C(C)(C)C)cc2S(=O)(=O)Nc2ccc([N+](=O)[O-])cc2)c(S(=O)(=O)Nc2ccc([N+](=O)[O-])cc2)c1
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?