CCC(C)Sc1ccc([C@H]2N[C@@](CC(C)C)(C(=O)OC)[C@H]3C(=O)N(C)C(=O)[C@@H]23)cc1.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?