Cc1c(S(=O)(=O)N2CCN(C(c3ccccc3)c3ccccc3)CC2)c(=O)n(C)c(=O)n1C
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?