C/C(=C1/N=C(c2cc([N+](=O)[O-])ccc2Cl)N(c2ccc(Br)cc2)C1=O)c1cc2ccccc2oc1=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?