COCC1CN(CCc2ccc(F)cc2)S(=O)(=O)c2c(OCCN3C(=O)C4C5C=CC(C5)C4C3=O)cccc2O1
Molecules with a polar surface area of greater than 140 angstroms squared (Å2) tend to be poor at permeating cell membranes. What's the psa of this molecule?