CC1=C(C(=O)N(C(C)C)C(C)C)CC(CC(=O)NC2CCCCC2)C(=O)N1CCC1=CCCCC1
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?