Cc1ccc(Oc2cc(NC(=O)CCCn3nc(C)c([N+](=O)[O-])c3C)cc([N+](=O)[O-])c2)cc1
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?