COc1ccc(S(=O)(=O)Nc2ccc(-c3csc(N4C(=O)/C(=C/c5cccs5)N=C4c4ccccc4)n3)cc2)cc1Cl
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?