Cc1ccccc1C1C(C#N)=C2NC(=O)c3c(sc4c3CCCCC4)N2C2=C1C(=O)CC(C)(C)C2
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?