CCCCCCCCCCNC1CC(OC2CC(O)(C(O)CO)Cc3c(O)c4c(c(O)c32)C(=O)c2c(OC)cccc2C4=O)OC(C)C1O.Cl
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?