Br.O=[N+]([O-])c1ccc(N/N=C/c2sc(N3CCOCC3)nc2-c2ccccc2)c(S(=O)(=O)Nc2ccc(Cl)cc2)c1
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?