CN(C)CCNc1ccc(NCC[N+](C)(C)Cc2ccc([N+](=O)[O-])cc2)c2c1C(=O)c1ccccc1C2=O.[Cl-]
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?