O=[N+]([O-])c1ccccc1-c1cc(-c2ccccc2)cc(-c2ccccc2)[n+]1Cc1ccccc1Cl.[O-][Cl+3]([O-])([O-])[O-]
Molecules with a polar surface area of greater than 60 angstroms squared (Å2) is hard to pass brain blood barrier. What's the psa of this molecule?