CC(=O)N(C(=O)CC(=O)N1N=C(C)C(/N=N/c2cccc([N+](=O)[O-])c2)C1=O)c1ccc(Cl)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?