Cc1ncsc1C(=O)N1N=C2/C(=C/c3ccc(N4CCOCC4)cc3)CCCC2C1c1ccc(N2CCOCC2)cc1
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?