COc1ccc(/N=C2C(=N/c3ccc(OC)cc3)\N(S(=O)(=O)c3ccccc3)C(=S)N\2c2ccc(OC)cc2)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?