Cc1c(C(=O)C/C(=N/NC(=O)c2ccccc2)C(=O)Nc2ccc(Cl)cc2)[n+]([O-])c2ccccc2[n+]1[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?