CN(C)CCN1C(=O)CC[C@]2(C)C1=CC[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?