COc1ccccc1/N=N/c1c(-c2ccccc2)nn(C(=O)CC(=O)Nc2ccccc2Cl)c1-c1ccccc1
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?