CCCNC(=O)C[C@@H]1C[C@@H]2c3cc(NS(=O)(=O)c4ccc(OC)cc4)ccc3O[C@@H]2[C@@H](CO)O1
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?