CC(C)=CC(=O)OC1C2C(C)=CC(=O)C(O)C2(C)C2C3(O)OCC24C(CC(=O)OC14)C(C)C3O
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?