Cn1c(N)c(C(=O)COC(=O)CCCN2C(=O)c3ccccc3C2=O)c(=O)n(C)c1=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?