N#CCCN(CCC#N)c1ccc(/C=C2\N=C(c3cc([N+](=O)[O-])ccc3Cl)N(S(=O)(=O)c3ccccc3)C2=O)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?