CCC(C)n1c(O)c(C(c2ccccn2)c2c(O)n(C(C)CC)c(=S)[nH]c2=O)c(=O)[nH]c1=S
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?