Cc1c(C(=O)CC(=O)C(=O)Nc2cccc(C(F)(F)F)c2)[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?