CCCC(=O)O[C@@H]1CCC2(C)C=CC([C@@H](C)C(=O)OC)=C(O2)[C@H]2[C@H](C)[C@H](O)C[C@H](OC(C)=O)[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?