COC(=O)CCCC1(CCCC(=O)OC)CCCCCCCCC(CCCC(=O)OC)(CCCC(=O)OC)C(=O)C1=O
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?