O=S(=O)(Oc1ccc2oc3ccccc3c2c1-c1c(OS(=O)(=O)C(F)(F)F)ccc2oc3ccccc3c12)C(F)(F)F
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?