CC1=CC[C@@H]2[C@@H](CC[C@@]2(C)O)C(C)(C)[C@H]1CC[C@H]1[C@@](C)(O)CC[C@H]2OC(C)(C)[C@H](O)CC[C@@]21C
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?