1.7.7.1	(NH4)2SO4	slightly inhibitory	399	
1.7.7.1	4-hydroxymercuribenzoate	-	970	
1.7.7.1	8-hydroxyquinoline	7% inhibition at 5 mM	321	
1.7.7.1	azide	-	230	
1.7.7.1	bathophenanthroline	slight	2722	
1.7.7.1	CO	enzyme from higher plants and algae	176	
1.7.7.1	CO	-	176	
1.7.7.1	CO	forms a complex with the reduced enzyme	176	
1.7.7.1	cyanide	-	118	
1.7.7.1	cyanide	92% inhibition at 0.1 mM	118