CC(C)CC1Nc2ncnc(N3CCCCC3)c2N(Cc2ccc(Br)cc2)C1=O.O=C(O)C(F)(F)F
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?