CCOC(=O)/C(C(=O)c1ccc([N+](=O)[O-])cc1)=C(\NS(=O)(=O)c1cc(C)c(Cl)cc1[S-])[n+]1ccc(N(C)C)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?