O=S(=O)(c1cccc(C(F)(F)F)c1)N1CCC(c2nc(O)c3nnn(Cc4cccc(F)c4)c3n2)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?