COc1ccc(NC(=O)/C(=C/c2ccc(N(CCC#N)CCC#N)cc2)NC(=O)c2cc([N+](=O)[O-])ccc2Cl)cc1
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?