Cc1cc(C)n(-c2ccc(C(=O)OCC(=O)Nc3ccc(S(=O)(=O)N4CCOCC4)cc3)cc2)n1
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?