CN(CCCNC(=O)c1nn(-c2ccc(Cl)cc2Cl)c2c1Cc1ccccc1-2)CCCNC(=O)c1nn(-c2ccc(Cl)cc2Cl)c2c1Cc1ccccc1-2
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?