Reaction catalyzed by inositol 2-dehydrogenase (1.1.1.18)

		+			=			+
	myo-inositol	+		2,6-dichlorophenolindophenol	=		2,4,6/3,5-pentahydroxycyclohexanone	+		reduced 2,6-dichlorophenolindophenol