CC(=O)O.COc1ccc(C2Nc3ccccc3C(=O)N2Cc2ccco2)cc1CN1C(=O)c2ccccc2C1=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?