Cc1sc2ncn(CC(=O)N3CCN(c4ccccn4)CC3)c(=O)c2c1S(=O)(=O)N1CCC(C)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?