COC(=O)/C(=N/Nc1cccc(Cl)c1)C(C(=O)C(=O)Nc1cccc(Cl)c1C)c1nc2ccccc2nc1C
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?