COc1ccc(/C=C2/SC(=O)N(CCC(=O)Nc3ccc(S(=O)(=O)Nc4nccs4)cc3)C2=O)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?