Clc1ccc(-c2ccc(-c3nnc(CCc4nnc(-c5ccc(-c6ccc(Cl)cc6)o5)o4)o3)o2)cc1
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?