CCCCCCNC(=O)O[C@@]12CN(S(=O)(=O)c3ccc(C)cc3)C[C@]1(O)Cn1c(=O)n(CCCCCC)c(=O)n1C2
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?