COc1ccc(S(=O)(=O)N(Cc2ccccc2)c2ccccc2C(=O)Nc2ccccc2C(=O)NCc2ccco2)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?