CN(C(=O)c1ccc(NC(=O)Cc2cccc(NC(=O)C3CCCN(C(=O)CCc4ccccc4)C3)c2)cc1)C1CCCC1
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?