CC(=O)Oc1c2c(c(OC(C)=O)c3c1n(C(C)=O)c1ccccc1n3C(C)=O)n(C(C)=O)c1ccccc1n2C(C)=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?