CCOc1ccc(-n2c(C)cc(/C=C3/C(=N)N4C(=NC3=O)SN=C4S(C)(=O)=O)c2C)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?