CC(C)n1c(O)c(C2c3cc(Cl)ccc3Oc3[nH]c(=O)n(C(C)C)c(=O)c32)c(=O)[nH]c1=O.N
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?