O=C(Nc1cccc(S(=O)(=O)N2CCCCC2)c1)[C@@H]1CCCN1S(=O)(=O)c1ccccc1C(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?