1.2.1.69	Chloroacetaldehyde	0.25 mM, time-dependent inactivation	
1.2.1.69	Cu2+	1 mM, strong inhibition	
1.2.1.69	iodoacetamide	0.05 mM, strong inhibition	
1.2.1.69	Mg2+	1 mM, 80% loss of activity, possibly due to a decreased dissociation rate of NADH from the enzyme