CCCn1c(C)cc(/C=C(\C#N)C(=O)OCC(=O)N(CC)c2c(N)n(Cc3ccccc3)c(=O)[nH]c2=O)c1C
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?