1,4-benzoquinone + NADH + H(+) = hydroquinone + NAD(+)
1,4-benzoquinone + nadh + h(+) = hydroquinone + nad(+)
1,4-benzoquinone + NADH + H(+) = hydroquinone + NAD(+)
1,4-benzoquinone + nadh + h(+) = hydroquinone + nad(+)