CC(=O)c1ccccc1NS(=O)(=O)c1ccc2nc(C)n(NS(=O)(=O)c3ccccc3C(C)=O)c(=O)c2c1
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?