Cc1onc(-c2c(F)cccc2Cl)c1C(=O)N[C@@H]1C(=O)N2C(C(=O)[O-])C(C)(C)S[C@H]12.[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?