Nc1c(N(Cc2ccccc2)C(=O)COc2cccc(Cl)c2)c(=O)[nH]c(=O)n1Cc1ccccc1
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?