N#CCCN(c1ccc(-c2nnc(NC(=O)CNNC(=O)CC(=O)Nc3ccccc3)s2)cc1)S(=O)(=O)c1ccccc1
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?