Cc1cc2c(cc1Cl)SSc1cc(Cl)c(C)cc1S(=O)(=O)Nc1nc(N)nn1C(O)n1nc(N)nc1NS2(=O)=O
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?