Oc1c(Cl)cc2cc1-c1cc(cc(Cl)c1O)CCc1c(cc(Cl)c(O)c1Cl)-c1cc(Cl)c(c(Cl)c1O)/C=C\2
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?