1.3.1.119 8-hydroxyquinoline 1 mM, 54% inhibition 321 1.3.1.119 HgCl2 0.1 mM, complete loss of activity, most potent inhibitor 110 1.3.1.119 KCN 1 mM, 26% inhibition 161 1.3.1.119 additional information no inhibition by EDTA, 2,2-dipyridyl, and 1,10-phenanthroline 2