O=C(NCC1CCCO1)C(c1ccc(F)cc1)N(Cc1ccc(F)cc1)C(=O)Cn1nnc(-c2cccs2)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?