O=[N+]([O-])/C(C(=C(Cl)Cl)N1CCN(Cc2ccccc2)CC1)=C1\NCCN1Cc1ccc(Cl)nc1
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?