O=C(O)C(=O)O.O=S(=O)(c1ccccc1C(F)(F)F)N1CCN(CC(O)COc2ccccc2F)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?