COCCN(C(=O)C1CC(=O)N(Cc2ccc(C)cc2)C1)c1c(N)n(CC(C)C)c(=O)[nH]c1=O
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?