CN(CCCC[C@H](CNCc1ccc(-c2ccccc2)cc1)N1C[C@H](c2ccccc2)N(CCc2ccc(Cl)c(Cl)c2)C(=O)C1=O)Cc1ccc(-c2ccccc2)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?