N#CC(C(=N/NC(N)=S)/C(=N/NC(N)=S)C(C#N)c1ccc(Cl)cc1)c1ccc(Cl)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?