CN(c1ccccc1)S(=O)(=O)c1ccc(Cl)c(C(=O)OCC(=O)NC2CCS(=O)(=O)C2)c1
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?