O=C(NCCNCC(O)COc1ccc(O)cc1)N1CCOCC1.O=C(NCCNCC(O)COc1ccc(O)cc1)N1CCOCC1.O=C(O)/C=C/C(=O)O
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?