CCCCCc1cc(=O)oc2c(C(CCN3CCCC3)c3cc(OC)c(OC)c(OC)c3)c(OC)cc(OC)c12
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?