Cc1ccc2nc(-c3cccc(-c4cccc(Cl)c4)c3)c(NCc3ccccc3)n2c1.O=C(O)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?