CN(C)S(=O)(=O)c1cccc(-c2nnc(SCC(=O)NCCCCCC(=O)O)n2-c2ccc(F)cc2)c1
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?