CCCCCCCCCCCCNC(=O)CCC(NC(=O)c1ccc(N(C)Cc2cnc3nc(N)nc(N)c3n2)cc1)C(=O)NCCCCCCCCCCCC
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?