CC1=C(C2=C(C)C(C(C)C)C3=C(C(=O)C(O)C3O)C2O)C(O)C2=C(C(O)C(O)C2=O)C1C(C)C
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?