CCn1cc([N+](=O)[O-])c(C(=O)Nc2c(C)nn(Cc3c(F)c(F)c(F)c(F)c3F)c2C)n1
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?