2-dehydropantolactone
competitive versus isatin
3,4-Dihydroxy-3-cyclobutene-1,2-dione
uncompetitive
Ag+
complete inhibition at 1 mM
Al3+
83%% inhibition, reduction of 2-dehydropantolactone
Ca2+
5.4% inhibition at 1 mM
Cd2+
97% inhibition, reduction of 2-dehydropantolactone
Co2+
24.7% inhibition at 1 mM
Cu2+
completely inhibits reduction of 2-dehydropantolactone
Cu2+
70.3% inhibition at 1 mM