Nc1ccc(Oc2ccc(C34CC5CC6C3CC3CC4C(C5)C6(c4ccc(Oc5ccc(N)c(O)c5)cc4)C3)cc2)cc1O
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?