CN(C)c1ccc(P(=O)(Nc2ccc([N+](=O)[O-])cc2)N2CCOCC2)c(NC(=O)c2cccs2)c1
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?