Nc1ccc(-c2nnc(-c3c(Cl)c(Cl)c(Cl)c(Cl)c3-c3nc4cc(C(=O)c5ccccc5)ccc4[nH]3)o2)cc1
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?