CN(C(=O)COC(=O)c1ccccc1Cc1ccccc1)c1c(N)n(Cc2ccccc2)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?