CC(=O)OC1CC2C(C)(C)C(O)CCC2(C)C2CC[C@]3(C)C(=CC(=O)OC3c3ccoc3)C12C
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?