Cc1ccccc1S(=O)(=O)N1[C@H](c2ccc(Cl)cc2)CC=C(C(=O)O)[C@@H]1c1ccccc1
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?