Cc1ccc(OCC2OC(n3cnc4c(Cl)nc(Nc5cc(Cl)cc(Cl)c5)nc43)CC2Oc2ccc(C)cc2)cc1
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?