CCN(CC)c1ccc2c(-c3ccc(S(=O)(=O)[O-])cc3S(=O)(=O)[O-])c3ccc(=[N+](CC)CC)cc-3oc2c1.[Na+]
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?