COc1ccc(/C=N/NC(=O)c2[nH]c3ccc(Cl)cc3c2-c2ccccc2)c(C(=O)O)c1OC
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?