CC1OC(CC2C=CCc3c(O)c4c(c(O)c32)C(=O)c2ccccc2C4=O)CC(NC(=O)C(F)(F)F)C1O
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?