CC1CCCC(NC(=O)C2N(CCCN3CCCC3)C(=O)C3C(C(=O)Nc4ccc(Cl)cc4)C4C=CC32O4)C1C
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?