Reaction catalyzed by medium-chain acyl-CoA dehydrogenase (1.3.8.7)

		+			=			+		reduced 2,6-dichorophenolindophenol
	decanoyl-CoA	+		2,6-dichlorophenolindophenol	=		2-decenoyl-CoA	+		reduced 2,6-dichorophenolindophenol