C[C@@]12Cc3cnc(-c4ccccc4)nc3C[C@@H]1CC[C@H]1[C@@H]2CC[C@]2(C)[C@@H]1CC[C@@]2(C)O
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?