CCS(=O)(=O)C1=NN2C(=N)/C(=C\c3ccc(OS(=O)(=O)c4ccccc4)c(OC)c3)C(=O)N=C2S1
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?