CC1(C)CC(=O)C2=C(C1)N(c1cccc(Cl)c1)C(=O)NC2(C(F)(F)F)C(F)(F)F
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?