Cc1ccc(Cn2c(C(CO)Nc3nc(-c4ccc(Cl)c([N+](=O)[O-])c4)cs3)nc3ccccc32)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?