Nc1ccc(/N=N/c2ccc(/C=C/c3ccc(/N=N/c4ccc(N)c5ccc(S(=O)(=O)O)cc45)cc3S(=O)(=O)O)c(S(=O)(=O)O)c2)c2cc(S(=O)(=O)[O-])ccc12.[Na+]
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?