2-demethylmenaquinone-8 + NADPH + H(+) <=> 2-demethylmenaquinol-8 + NADP(+)
2-demethylmenaquinone-8 + nadph + h(+) <=> 2-demethylmenaquinol-8 + nadp(+)
2-demethylmenaquinone-8 + NADPH + H(+) <=> 2-demethylmenaquinol-8 + NADP(+)
2-demethylmenaquinone-8 + nadph + h(+) <=> 2-demethylmenaquinol-8 + nadp(+)