CSC1=NS(=O)(=O)c2cc(C(=O)NN(C)C(=O)c3cc4c(cc3Cl)SC(SC)=NS4(=O)=O)c(Cl)cc2S1
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?