CC(C)(C)OC(=O)N1CCC(c2c(C(=O)N3CCN(C(=O)c4ccco4)CC3)cnn2-c2cccc(Cl)c2)CC1
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?