CCCC/N=C/[C@]12CCC(O)CC1(O)CCC1[C@@H]2CC[C@]2(C)[C@H](C3C=CC(=O)O3)CCC12O
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?