2-demethylmenaquinone-8 + NADH + H(+) => 2-demethylmenaquinol-8 + NAD(+)
2-demethylmenaquinone-8 + nadh + h(+) => 2-demethylmenaquinol-8 + nad(+)
2-demethylmenaquinone-8 + NADH + H(+) => 2-demethylmenaquinol-8 + NAD(+)
2-demethylmenaquinone-8 + nadh + h(+) => 2-demethylmenaquinol-8 + nad(+)