COc1cccc(C2CC(c3cccs3)=NN2C(=O)CSc2nc(O)c3cnn(-c4ccc(F)cc4)c3n2)c1OC
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?