5,6-dihydrouracil + NAD(+) <=> uracil + NADH + H(+)
5,6-dihydrouracil + nad(+) <=> uracil + nadh + h(+)
5,6-dihydrouracil + NAD(+) <=> uracil + NADH + H(+)
5,6-dihydrouracil + nad(+) <=> uracil + nadh + h(+)