CC(C)[C@H](NS(=O)(=O)c1ccc2c(c1)OCCO2)C(=O)OCC(=O)Nc1cccc(Cl)c1Cl
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?