CCN1CCN(C(=O)N(CC(=O)Nc2ccc(C(N)=O)cc2)S(=O)(=O)c2ccc(C)cc2)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?