Cc1c(CCC(=O)N2CCC(C(=O)NCCCCCC(=O)O)CC2)c(=O)oc2cc3oc4c(c3cc12)CCCC4
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?