Cc1ccc(S(=O)(=O)N2[C@H](c3ccc4c(c3)OCO4)CC=C(C(=O)O)[C@@H]2c2cccc(Cl)c2)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?