CC(NC(=O)C(OC(=O)C(C)NC(=O)OC(C)(C)C)C(C)C)C(=O)OC(C(=O)O)C(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?