C[C@H](NS(=O)(=O)c1ccc(Cl)c(Cl)c1)C(=O)OCc1cc(=O)n2cc(Br)ccc2n1
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?