CCCCCC(O)C1C(=O)OC(C)C(O)/C=C\C=C/C=C\C=C/C=C(/C)C(O)C(O)C(O)CC(O)CC(O)CC(O)CC(O)CC1O
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?